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The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position.^[1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.

Area codes in numerical order

Area codes that are not in use are listed in italic type face; and unassignable codes are bolded. The column Date lists either the date or year of assignment before implementation, or the in-service date.

200–299

Code	Territory or use	Date	Notes
200	not in use; available for non-geographic assignment		easily recognizable code (ERC)
201	New Jersey (Bergen County and Hudson County)	1947	created for all of New Jersey 1956: split to create 609 1991: split to create 908 1997: split to create 973 2001: overlaid by 551
202	Washington, D.C.	1947	2021: overlaid by 771
203	Connecticut (Bridgeport, Danbury, New Haven, Waterbury, and southwestern Connecticut)	1947	created for all of Connecticut 1995: split to create 860 2009: overlaid by 475
204	Manitoba	1947	2012: overlaid by 431 2022: overlaid by 584
205	Alabama (Birmingham, Tuscaloosa, and parts of western and central Alabama)	1947	created for all of Alabama 1995: split to create 334 1998: split to create 256 2019: overlaid by 659
206	Washington (Seattle area)	1947	created for all of Washington 1957: split to create 509 1995: split to create 360 1997: split to create 425 and 253
207	Maine (all except Estcourt Station)	1947
208	Idaho	1947	2017: overlaid by 986
209	California (Stockton, Modesto, Merced, Tracy, San Andreas, and a part of central California extending into central Yosemite National Park)	1958	split of 916 1998: split to create 559 2022: overlaid by 350
210	Texas (San Antonio metropolitan area)	1992	split of 512 1997: split three ways to create 830 and 956 2017: overlaid by 726
211	Not assignable; N11 code for community services, local/regional information service
212	New York (New York City: Manhattan only, except for Marble Hill)	1947	created for all of New York City 1984: split to create 718 for Brooklyn, Queens, and Staten Island 1992: the Bronx switched to 718 1992: overlaid by 917 1999: overlaid by 646 2017: overlaid by 332
213	California (central area of Los Angeles)	1947	created for the southern third of California 1951: split to create 714 1957: split to create 805 1984: split to create 818 1991: split to create 310 1998: split to create 323 2017: merged with 323 as an overlay 2024: overlaid by 738
214	Texas (Dallas metropolitan area)	1947	1953: split to create 817 1990: split to create 903 1996: split to create 972 1999: 214 and 972 were merged and overlaid with 469 2021: overlaid by 945
215	Pennsylvania (Philadelphia area, including all of Philadelphia and its suburbs in eastern Montgomery County, most of Bucks County, and a very small portion of Berks County around the Hereford area, which is served by the Pennsburg 679 exchange)	1947	1994: split to create 610 1997: overlaid by 267 2018: overlaid by 445
216	Ohio (Cleveland area)	1947	1996: split to create 330 1997: split to create 440
217	Illinois (Springfield, Champaign, Decatur, Urbana, Lincoln, and parts of central Illinois)	1947	1957: split to create a part of 309 2021: overlaid by 447
218	Minnesota (Duluth, Moorhead, Thief River Falls, Bemidji, Brainerd, International Falls, and most of northern Minnesota)	1947	1954: split to create 507
219	Indiana (Gary area)	1948	split of 317 2002: split to create 260 and 574
220	Ohio (suburban Columbus, central Ohio outside of Franklin County)	April 22, 2015	overlaid on area code 740
221	not in use; available for geographic assignment
222	not in use; available for non-geographic assignment		easily recognizable code (ERC)
223	Pennsylvania (Harrisburg, Gettysburg, Lancaster, York, and most of south-central Pennsylvania)	September 26, 2017	overlaid on 717 mnemonic: ABE
224	Illinois (North and northwest suburbs of Chicago)	January 5, 2002	overlaid on 847
225	Louisiana (Baton Rouge area and east-central Louisiana)	August 17, 1998	created by split of 504 mnemonic: CAJun
226	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	October 21, 2006	overlaid on 519 2016: overlaid by 548 2023: overlaid by 382 mnemonic: CANada
227	Maryland (Washington, D.C., suburbs; all counties which touch the Potomac River; Silver Spring, Hagerstown, Frederick, Rockville, Cumberland; and fixed-line telephones in western Maryland)	June 14, 2023	Overlaid on 240/301
228	Mississippi (Gulfport, Biloxi, Pascagoula, Bay St. Louis, and southmost Mississippi)	September 15, 1997	split of 601
229	Georgia (Albany, Valdosta, Bainbridge, Americus, Fitzgerald, and most of southwestern Georgia)	August 1, 2000	split of 912
230	not in use; available for geographic assignment
231	Michigan (Muskegon, Traverse City, Ludington, Petoskey, and a part of northwestern Michigan)	June 5, 1999	split of 616
232	not in use; available for geographic assignment
233	not in use; available for non-geographic assignment		easily recognizable code (ERC)
234	Ohio (Akron, Canton, Youngstown, Warren, and most of northeastern Ohio)	October 30, 2000	overlaid on 330
235	Missouri (Columbia, Jefferson City, Hannibal, Cape Girardeau, Farmington, Lake of the Ozarks, Poplar Bluff, and most of eastern Missouri excluding the St. Louis metropolitan area)	March 24, 2024	overlaid on 573
236	British Columbia (all, and the isolated border town of Hyder, Alaska, US)	June 1, 2013	overlaid on 604, 250, and 778^[2] 2019: overlaid by 672 2025: to be overlaid by 257
237–238	not in use; available for geographic assignment
239	Florida (southwest coast: all of Lee County, Collier County, the mainland part of Monroe County, including Cape Coral, Fort Myers, Naples, and Everglades)	March 11, 2002	split of 941
240	Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and landline telephones in western Maryland)	June 1, 1997	overlaid on 301 2023: overlaid by 227
241	not in use; available for geographic assignment
242	The Bahamas (all)	October 1, 1996	split of 809 mnemonic: BHA
243	not in use; available for geographic assignment
244	not in use; available for non-geographic assignment		easily recognizable code (ERC)
245	not in use; available for geographic assignment
246	Barbados (all)	July 1, 1996	split of 809 mnemonic: BIM
247	not in use; available for geographic assignment
248	Michigan (Oakland County)	May 10, 1997	split of 810 2002: overlaid by 947
249	Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	March 19, 2011	overlaid on 705 2022: overlaid by 683 460 reserved as a fourth area code for the region.
250	British Columbia (Victoria, Prince George, Prince Rupert, Kelowna, all areas except for Metro Vancouver and the Fraser Valley; and the isolated border town of Hyder, Alaska, US)	October 19, 1996	split of 604 2008: overlaid by 778 (see 604) 2013: overlaid by 236 2019: overlaid by 672
251	Alabama (Mobile County, Baldwin County, Bay Minette, Jackson, Brewton, Citronelle, and a part of southwestern Alabama)	June 18, 2001	split of 334
252	North Carolina (Greenville, New Bern, Elizabeth City, Kinston, Outer Banks, Rocky Mount)	March 22, 1998	split of 919
253	Washington (Tacoma, Lakewood, Auburn, Puyallup, Enumclaw, Spanaway, and the southern suburbs of Seattle)	April 27, 1997	split of 206
254	Texas (Waco, Killeen, Temple, Belton, and Stephenville)	May 25, 1997	split of 817
255	not in use; available for non-geographic assignment		easily recognizable code (ERC)
256	Alabama (Huntsville, Decatur, Cullman, Gadsden, Madison, Florence, Sheffield, Tuscumbia, Fort Payne, Scottsboro, and most of northern Alabama)	March 23, 1998	split of 205 2010: overlaid by 938
257	British Columbia (all, and the isolated border town of Hyder, Alaska, US)	May 24, 2025^[3]	to be overlaid on 778/236/672
258–259	not in use; available for geographic assignment
260	Indiana (Fort Wayne, New Haven, Decatur, Angola, Huntington, Wabash, and most of northeastern Indiana)	January 15, 2002	split of 219
261	not in use; available for geographic assignment
262	Wisconsin (Racine, Kenosha, Menomonee Falls, Waukesha, and most of southeastern Wisconsin excluding Milwaukee County)	September 25, 1999	split of 414
263	Quebec (Montreal metropolitan area)	October 22, 2022	overlaid on 514 and 438
264	Anguilla (all)	March 31, 1997	split of 809 mnemonic: ANG
265	not in use; available for geographic assignment
266	not in use; available for non-geographic assignment		easily recognizable code (ERC)
267	Pennsylvania (Philadelphia and surrounding suburban area)	July 1, 1999	overlaid on 215
268	Antigua and Barbuda (all)	April 1, 1996	split of 809 mnemonic: ANT
269	Michigan (Battle Creek, Kalamazoo, Benton Harbor, Allegan, Hastings, St. Joseph, and most of southwestern Michigan)	July 13, 2002	split of 616
270	Kentucky (Owensboro, Paducah, Bowling Green, Hopkinsville, Henderson, Elizabethtown, and most of western Kentucky)	April 19, 1999	split of 502 2014: overlaid by 364
271	not in use; available for geographic assignment
272	Pennsylvania ((the Wyoming Valley, including Scranton and Wilkes-Barre; Bloomsburg; Danville; Nanticoke; Williamsport; and most of northeastern Pennsylvania)	October 21, 2013	overlaid on 570
273	not in use; available for geographic assignment in Canada
274	Wisconsin (Appleton, Sheboygan, Oshkosh, Green Bay, Manitowoc, Marquette, Fond du Lac, and parts of eastern Wisconsin—but not in Milwaukee County)	May 5, 2023	overlaid on 920
275	not in use; available for geographic assignment
276	Virginia (Bristol, Abingdon, Wytheville, Martinsville, Bluefield, Big Stone Gap, and the remainder of southwestern Virginia)	September 1, 2001	split of 540
277	not in use; available for non-geographic assignment		easily recognizable code (ERC)
278	not in use; available for geographic assignment		was a planned overlay for Michigan's 734, but this has been canceled
279	California (the Sacramento Metropolitan Area)	March 10, 2018	overlaid on 916
280	not in use; available for geographic assignment
281	Texas (Houston area)	November 2, 1996	split of 713 1999: merged with 713 as an overlay 1999: overlaid by 832 2014: overlaid by 346
282	not in use; available for geographic assignment
283	Ohio (Cincinnati, Middletown, Hamilton, Lebanon, and parts of southern and southwestern Ohio)	April 28, 2023	overlaid on 513
284	British Virgin Islands (all)	October 1, 1997	split of 809 mnemonic: BVI
285–287	not in use; available for geographic assignment
288	not in use; available for non-geographic assignment		easily recognizable code (ERC)
289	Ontario (Oshawa-Hamilton and Golden Horseshoe, excluding Toronto 416 but including its adjacent suburbs)	June 9, 2001	overlaid on 905 2013: overlaid by 365 2021: overlaid by 742 537 reserved as a fifth area code for the region.
290–299	not in use; reserved for potential North American Numbering Plan expansion

300–399

Code	Territory or use	Date	Notes
300	not in use; available for non-geographic assignment		easily recognizable code (ERC)
301	Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and land line telephones in western Maryland)	1947	created for all of Maryland 1991: split to create 410 1997: overlaid by 240 2023: overlaid by 227
302	Delaware (all)	1947
303	Colorado (Denver, Boulder, Longmont, Aurora, Golden, Limon, Littleton, Centennial; central Colorado)	1947	created for all of Colorado 1988: split to create 719 1995: split to create 970 1998: overlaid by 720 2022: overlaid by 983
304	West Virginia	1947	2009: overlaid by 681
305	Florida (all of Miami-Dade County and the Florida Keys)	1947	created for all of Florida 1953: split to create 813 1965: split to create 904 1988: split to create 407 1995: split to create 954 1998: partially overlaid by 786, in Miami-Dade County only 2008: completely overlaid by 786, including the Florida Keys 2023: overlaid with 645
306	Saskatchewan	1947	2012: overlaid by 639^[4] 2021: overlaid by 474^[5]
307	Wyoming (all)	1947
308	Nebraska (North Platte, Scottsbluff, McCook, Kearney, Grand Island; western Nebraska)	1955	split of 402
309	Illinois (Peoria, Bloomington, Moline, Rock Island, Galesburg; west-central Illinois)	1957	created from parts of 217 and 815 2023: overlaid by 861
310	California (southwestern coastal and coastal-adjacent areas of Los Angeles County, including Beverly Hills, Brentwood, Malibu, Pacific Palisades, Redondo Beach, Santa Monica, Torrance, and Santa Catalina Island)	November 2, 1991	split of 213 1997: split to create 562 2006: overlaid by 424
311	Not assignable; N11 code for non-emergency calls to local government, or to reach the city or county hall
312	Illinois (downtown Chicago)	1947	1989: split to create 708 1996: split to create 773 2009: overlaid by 872
313	Michigan (Dearborn, the Grosse Pointes, Detroit, and the latter's enclaves of Hamtramck and Highland Park)	1947	1993: split to create 810 1997: split to create 734 2025: to be overlaid by 679
314	Missouri (St. Louis, St. Louis County, Florissant, Crestwood, Hazelwood, Kirkwood, and surrounding suburbs of St. Louis)	1947	1950: split to create a part of 417 1996: split to create 573 1999: split to create 636 2022: overlaid by 557
315	New York (Syracuse, Utica, Watertown; north-central New York)	1947	1954: split to create a part of 607 2017: overlaid by 680
316	Kansas (Wichita metro, McConnell AFB, Cheney, El Dorado, Mulvane, Newton)	1947	2001: split to create 620
317	Indiana (Indianapolis and immediate metro area including Carmel, Fishers, Noblesville, Westfield, Greenwood, Mooresville, Beech Grove, Plainfield, Avon, Brownsburg, and Zionsville)	1947	1948: split to create 219 1997: split to create 765 2016: overlaid by 463
318	Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana)	1957	originally used temporarily for the San Francisco Bay Area until 1953.^[6] split of 504 1999: split to create 337 2025: to be overlaid by 457
319	Iowa (Cedar Rapids, Waterloo, Burlington, Iowa City; parts of eastern Iowa)	1947	2001: split to create 563
320	Minnesota (St. Cloud, Alexandria, Morris, Hutchinson, Sandstone, Appleton, Willmar; central Minnesota)	March 17, 1996	split of 612
321	Florida (Orlando, Cocoa, Melbourne, Rockledge, Titusville, St Cloud, and east-central Florida)	November 1, 1999	In 1999, created by a simultaneous split and overlay of the 407 area code.
322	not in use; available for non-geographic assignment		easily recognizable code (ERC)
323	California (Downtown Los Angeles and surrounding areas)	June 13, 1998	split of 213 2017: merged with 213 as an overlay 2024: 213/323 will be overlaid with 738
324	Florida (Jacksonville, St. Augustine, Starke, and most of northeastern Florida)	February 26, 2024	overlaid with 904
325	Texas (Abilene, San Angelo, Sweetwater, Snyder)	April 5, 2003	split of 915
326	Ohio (Dayton, Springfield, and southwestern Ohio north and east of the Cincinnati metropolitan area)	March 8, 2020	overlaid on 937
327	Arkansas (Texarkana, Jonesboro, Pine Bluff; southern, eastern, and northeastern Arkansas)	February 20, 2024	overlaid on 870 2027: 870 & 327 will soon cover the entire state with boundary elimination details are TBD
328	not in use; available for geographic assignment
329	New York (Dutchess, Orange, Putnam, Rockland, Sullivan, and Ulster counties)	March 24, 2023	overlaid on 845
330	Ohio (Akron, Canton, Youngstown, Warren, and most of northeastern Ohio)	March 9, 1996	split of 216 2000: overlaid by 234
331	Illinois (Aurora, Naperville, Oswego; western suburbs of Chicago)	October 7, 2007	overlaid on 630
332	New York (New York City: Manhattan only, except for Marble Hill)	June 10, 2017	created as an overlay of 212, 646, and a part of 917
333	not in use; available for non-geographic assignment		easily recognizable code (ERC)
334	Alabama (Montgomery, Auburn, Dothan, Enterprise, Eufaula, Opelika, Phenix City, Selma, Tuskegee, and most of southeastern Alabama)	January 15, 1995	split of 205 2001: split to create 251 2026: to be overlaid by 483
335	not in use; available for geographic assignment
336	North Carolina (the Piedmont Triad, Wilkesboro, Roxboro, and most of northwestern North Carolina)	December 15, 1997	split of 910 2016: overlaid by 743
337	Louisiana (Lafayette, Lake Charles, Leesville, New Iberia, Opelousas, and most of southwestern Louisiana)	October 11, 1999	split of 318
338	not in use; available for geographic assignment
339	Massachusetts (Canton, Hanson, Lincoln, Nahant, Plympton, Revere, Stoughton, Winchester, and east-central Massachusetts)	May 2, 2001	overlaid on 781
340	U.S. Virgin Islands (all)	June 1, 1997	split of 809
341	California (coastal regions of the East Bay—Oakland, Fremont, Hayward, Richmond, Berkeley, and Alameda)	July 22, 2019	overlaid on 510
342	not in use; available for geographic assignment
343	Ontario (Ottawa metropolitan area and southeastern Ontario)	May 17, 2010	overlaid on 613 2022: overlaid by 753
344	not in use; available for non-geographic assignment		easily recognizable code (ERC)
345	the Cayman Islands (all)	September 1, 1996	split of 809
346	Texas (Houston area)	July 1, 2014	overlaid on 713, 281, and 832
347	New York (New York City: The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	October 1, 1999	overlaid on 718 and a part of 917 2011: overlaid by 929
348–349	not in use; available for geographic assignment
350	California (Stockton, Modesto, Merced, Tracy, San Andreas, and a part of central California extending into central Yosemite National Park)	November 28, 2022	overlaid on 209
351	Massachusetts (Ashby, Barre, Boxborough, Carlisle, Groveland, Rowley, Wendell, Wenham, and northeastern Massachusetts)	May 2, 2001	overlaid on 978
352	Florida (Gainesville, Ocala, Inverness, Dunnellon, and a part of central Florida)	December 3, 1995	split of 904 mnemonic: FLA
353	Wisconsin (Madison, La Crosse, Platteville, Beloit, and most of southwestern Wisconsin)	September 15, 2023	overlaid on 608
354	Quebec (central southern Quebec; surrounding City of Montreal)	October 22, 2022	overlaid on 450/579
355	not in use; available for non-geographic assignment		easily recognizable code (ERC)
356	not in use; available for geographic assignment		was authorized as a relief area code in New Jersey, but 862 was used
357	California (Fresno, Hanford, Madera, Tulare, Visalia, and parts of the San Joaquin Valley)	March 26, 2025	to be overlaid on 559
358-359	not in use; available for geographic assignment
360	Washington (Olympia, Vancouver, Bellingham, Bremerton, Port Angeles, Aberdeen, and most of western Washington, except the Seattle metropolitan area)	January 15, 1995	split of 206 2017: overlaid by 564
361	Texas (Corpus Christi, Victoria, George West, and much of south Texas)	February 13, 1999	split of 512
362	not in use; available for geographic assignment
363	New York (Nassau County, including Hempstead and Mineola)	January 20, 2023	overlaid on 516
364	Kentucky (Owensboro, Paducah, Bowling Green, Hopkinsville, Henderson, Elizabethtown, and most of western Kentucky)	March 3, 2014	overlaid on 270
365	Ontario (Oshawa-Hamilton and the Golden Horseshoe, excluding Toronto's 416 but including its adjacent suburbs)	March 25, 2013	overlaid on 905 and 289^[7] overlaid by 742 in 2021^[8] 537 reserved as a fifth area code for the region.
366	not in use; available for non-geographic assignment		easily recognizable code (ERC)
367	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	November 24, 2018	overlaid on 418/581^[9]^[10]
368	Alberta (all)	April 23, 2022	overlaid on 403, 780, and 587/825 568 reserved as a fifth area code for the region.
369	California (Vallejo, Crescent City, Eureka, Redwoods National Park, Santa Rosa, Ukiah, and most of northwestern California)	February 1, 2023	overlaid on 707
370–379	not in use; reserved in case a block of consecutive numbers is ever needed		377 is an easily recognizable code (ERC)
380	Ohio (Columbus and Franklin County)	February 27, 2016	overlaid on 614 in Ohio
381	not in use; available for geographic assignment
382	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	June 17, 2023	overlaid on 519/226/548
383–384	not in use; available for geographic assignment
385	Utah (Counties of Davis; Morgan; Salt Lake; Utah; and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo)	March 29, 2009	overlaid on 801
386	Florida (Daytona Beach, Lake City, Live Oak, Crescent City, and parts of northeastern Florida)	February 15, 2001	split of 904 mnemonic: FUN
387	not in use; reserved to overlay 416/647/437 (Toronto metropolitan area)
388	not in use; available for non-geographic assignment		easily recognizable code (ERC)
389	not in use; available for geographic assignment
390–399	not in use; reserved for potential North American Numbering Plan expansion

400–499

Code	Territory or use	Date	Notes
400	not in use; available for non-geographic assignment		easily recognizable code (ERC)
401	Rhode Island (all)	1947
402	Nebraska (Omaha, Lincoln, Norfolk, Superior, and most of eastern Nebraska)	1947	created for all of Nebraska 1954: split to create 308 2011: overlaid by 531
403	Alberta (Calgary, Banff, Red Deer, Medicine Hat, Lethbridge, Brooks, and most of southern Alberta)	1947	originally also covered all of the Yukon Territory and a part of the Northwest Territories 1997: split to create a part of 867 1999: split to create 780 2008: overlaid by 587 2016: overlaid by 825 2022: overlaid by 368 568 reserved as a fifth area code for the region.
404	Georgia (Atlanta and the Atlanta metropolitan area inside of the Interstate 285 perimeter highway)	1947	created for all of Georgia 1954: split to create area code 912 1992: split to create area code 706 1995: split to create area code 770 1998: overlaid by 678
405	Oklahoma (Oklahoma City, Stillwater, Edmond, Norman, Shawnee, and most of central Oklahoma)	1947	created for all of Oklahoma 1953: split to create 918 1997: split to create 580 2021: overlaid by 572
406	Montana (all)	1947
407	Florida (Orlando, Sanford, St. Cloud, Kissimmee, and a part of east-central Florida)	April 16, 1988	split of 305 1996: split to create 561 1999: split and overlaid, partially, by 321 2019: overlaid by 689
408	California (San Jose, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Milpitas, Mountain View, Santa Clara, Sunnyvale, and Silicon Valley)	1959	split of 415 1998: split to create 831 2012: overlaid by 669
409	Texas (Beaumont, Galveston, Orange, Port Arthur, and Texas City)	November 1, 1982	split of 713 2000: split to create 936 and 979
410	Maryland (Baltimore, Annapolis, Columbia, and all counties and cities which touch the Chesapeake Bay, the Atlantic Ocean, or Delaware, except for St. Mary's County (in 301))	October 6, 1991	split of 301 1997: overlaid by 443 2012: overlaid by 667
411	Not assignable; N11 code for local information, local directory assistance
412	Pennsylvania (Pittsburgh region)	1947	1998: split to create 724 2001: overlaid by 878
413	Western part of Massachusetts	1947
414	Wisconsin (Milwaukee County includes cities of Milwaukee, West Allis, Oak Creek, and others)	1947	1955: split to create a part of 608 1997: split to create 920 1999: split to create 262
415	California (San Francisco, Daly City, Brisbane, and most of Marin County)	1947	1959: split to create 408 and 707 1991: split to create 510 1997: split to create 650 2015: overlaid by 628
416	Ontario (the City of Toronto)	1947	1953: split to create a part of 519 1993: split to create 905 2001: overlaid by 647 2013: overlaid by 437 2025: overlaid by 942 area code 387 is reserved as a fifth code for the region
417	Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri)	1950	created from parts of the area codes 314 and 816
418	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	1947	2008: overlaid by 581 2018: overlaid by 367
419	Ohio (Toledo area and most of northwestern Ohio)	1947	2002: overlaid by 567
420	not in use; available for geographic assignment
421	not in use; available for geographic assignment
422	not in use available for non-geographic assignment		* easily recognizable code (ERC)
423	Tennessee (two discontiguous portions of East Tennessee in the northeast and in the southeast)	September 11, 1995	split of 615 1999: split to create 865 2025: to be overlaid by 729
424	California (southwestern coastal and coastal-adjacent areas of Los Angeles County; also Santa Catalina Island)	August 26, 2006	overlaid on 310
425	Washington (northern and eastern suburbs of Seattle)	April 27, 1997	split of 206
426–427	not in use; available for geographic assignment
428	New Brunswick	April 29, 2023	overlaid on 506
429	not in use; available for geographic assignment
430	Texas (Tyler, Sherman, Longview, Marshall, Palestine, Jacksonville, Carthage, and Northeast Texas)	February 15, 2003	overlaid on 903
431	Manitoba	November 3, 2012	overlaid on 204 2022: overlaid by 584
432	Western Texas (West Texas: Midland, Odessa, Big Spring, Alpine, Fort Stockton)	April 5, 2003	split of 915
433	not in use; available for non-geographic assignment		easily recognizable code (ERC)
434	Virginia (Charlottesville, Lynchburg, Danville, and south-central Virginia)	June 1, 2001	split of 804
435	Most of Utah outside the Salt Lake City, Ogden, and Provo metropolitan areas in northern Utah	September 21, 1997	split of 801
436	Ohio (surrounding Cleveland on three sides, including: Elyria, Lorain, Oberlin, Ashtabula, and most of north-central Ohio)	March 1, 2024	overlaid on 440
437	Ontario (Toronto metropolitan area)	March 25, 2013	overlaid on 416/647 2025: to be overlaid by 942 area code 387 is reserved as a fifth code for the region
438	Quebec (Montreal metropolitan area)	November 4, 2006	overlaid on 514 2022: overlaid by 263
439	not in use; available for geographic assignment
440	Ohio (surrounding Cleveland on three sides, including: Elyria, Lorain, Oberlin, Ashtabula, and most of north-central Ohio)	August 16, 1997	split of 216 2024: overlaid by 436
441	Bermuda (all)	October 1, 1995	1995: the first of many splits from 809
442	California (most of the desert and mountain portions of the southeastern two-thirds of California)	November 21, 2009	overlaid on 760
443	Maryland (Baltimore, Annapolis, Columbia, and all counties and cities which touch the Chesapeake Bay, the Atlantic Ocean, or Delaware, except for St. Mary's County (in 301))	June 1, 1997	overlaid on 410 2012: overlaid by 667
444	not in use; available for non-geographic assignment		easily recognizable code (ERC)
445	overlay of 215 and 267 (Philadelphia, Pennsylvania)	March 3, 2018	created in 2018 one thousands block is assigned to a switch in Tucson, Arizona
446	not in use; available for geographic assignment
447	Illinois (Springfield, Champaign, Decatur, Urbana, Lincoln, and parts of central Illinois)	March 27, 2021	overlaid on 217
448	The Florida Panhandle	June 22, 2021	overlaid on 850
449	not in use; available for geographic assignment
450	Quebec (central southern Quebec; surrounds City of Montreal)	June 13, 1998	split of 514 2010: overlaid by 579 2022: overlaid by 354
451–454	not in use; available for geographic assignment
455	not in use; available for non-geographic assignment		easily recognizable code (ERC)
456	not in use; became available for geographic assignment in 2023		originally reserved for inbound international calls for carrier-specific services 2017: was withdrawn because of lack of demand 2023: returned to the pool of area codes available for future area code relief
457	Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana)	September 25, 2025^[3]	to be overlaid on 318 previously a fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in Saskatchewan.
458	Oregon (Eugene, Medford, Bend, Pendleton, Corvallis, Ontario, Burns; excludes the Portland metropolitan area)	February 10, 2010	overlaid on 541
459	not in use; available for geographic assignment
460	Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)		reserved as a fourth area code to overlay 705/249/683 with no set date of implementation
461–462	not in use; available for geographic assignment
463	Indiana (Indianapolis and immediate metro area including Carmel, Fishers, Noblesville, Westfield, Greenwood, Mooresville, Beech Grove, Plainfield, Avon, Brownsburg, and Zionsville)	November 15, 2016	overlaid on 317 mnemonic: INDiana
464	Illinois (western and southern portions of suburban Cook County and far eastern sections of Will County and southern and near western suburbs of Chicago)	January 21, 2022	overlaid on 708
465	not in use; available for geographic assignment
466	not in use; available for non-geographic assignment		easily recognizable code (ERC)
467	not in use; available for geographic assignment
468	Quebec (Western Québec, except Montréal 514 and surrounding area 450: a large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivières)	October 22, 2022	overlaid on 819/873
469	Texas (Dallas metropolitan area)	July 1, 1999	overlaid on 214 and 972 2021: overlaid by 945
470	Georgia (Metro Atlanta)	February 26, 2010	overlaid on area codes 404, 678 and 770
471	Mississippi (Tupelo, Columbus, Corinth, Greenville, Greenwood, Starkville, and most of northern Mississippi)	January 30, 2026	to be overlaid on 662
472	North Carolina (Fayetteville, Wilmington, Fort Liberty, Seymour Johnson Air Force Base, Jacksonville, Lumberton, and much of southeastern North Carolina)	October 7, 2022	overlaid on 910
473	Grenada (all)	October 31, 1997	split of 809 mnemonic: GRE or GRD
474	Saskatchewan	October 2, 2021	overlaid on 306/639^[5]
475	Connecticut (Bridgeport, Danbury, New Haven, Waterbury, and southwestern Connecticut)	December 12, 2009	overlaid on 203
476	not in use; available for geographic assignment
477	not in use; available for non-geographic assignment		easily recognizable code (ERC)
478	Georgia (Macon, Warner Robins, Swainsboro, Milledgeville, Perry, and a part of central Georgia)	August 1, 2000	split of 912
479	Arkansas (Fort Smith, Fayetteville, Rogers, and most of northwestern Arkansas)	January 19, 2002	split of 501
480	Arizona (Phoenix metropolitan area; primarily the East Valley)	March 1, 1999	created by a three-way split of 602 (along with 623) 2023: combined with 602 and 623 into an overlay complex for the Phoenix metropolitan area
481	not in use; available for geographic assignment
482	not in use; available for geographic assignment
483	Alabama (Montgomery, Auburn, Dothan, Enterprise, Eufaula, Opelika, Phenix City, Selma, Tuskegee, and most of southeastern Alabama)	February 23, 2026	to be overlaid on 334
484	Pennsylvania (Chester, Lehigh Valley, Norristown, Reading; parts of southeastern Pennsylvania)	June 5, 1999	overlaid on 610 2022: overlaid by 835
485–486	not in use; available for geographic assignment
487	not in use; available for geographic assignment in Canada
488	not in use; available for non-geographic assignment		easily recognizable code (ERC)
489	not in use; available for geographic assignment
490–499	not in use; reserved for potential North American Numbering Plan expansion

500–599

Code	Territory or use	Date	Notes
500	personal communications services	May 19, 1994
501	Arkansas (Little Rock, Hot Springs, and much of central Arkansas, but not Pine Bluff)	1947	created for all of Arkansas 1997: split to create 870 2002: split to create 479
502	Kentucky (Louisville, Frankfort, Shelbyville, Bardstown, and most of north-central Kentucky)	1947	created for all of Kentucky 1954: split to create 606 1999: split to create 270
503	Oregon (Portland, Salem, Hillsboro, Beaverton, St. Helens, Tillamook, Astoria, and most of northwestern Oregon)	1947	created for all of Oregon 1995: split to create 541 2000: partially overlaid by 971, excluding Clatsop County and Tillamook County 2008: complete overlay implemented
504	Louisiana (New Orleans metropolitan area)	1947	created for all of Louisiana 1957: split to create 318 1998: split to create 225 2001: split to create 985
505	New Mexico (Albuquerque, Santa Fe, Farmington, Gallup, and all of northwestern New Mexico, and a part of central New Mexico)	1947	created for all of New Mexico 2007: split to create 575
506	New Brunswick (all)	1955	split of 902 originally also covered Newfoundland 1962: split to give Newfoundland its own 709 area code 2023: overlaid by 428
507	Minnesota (Rochester, Mankato, Austin, Marshall, Winona, and most of southern Minnesota)	1954	split of 612 and 218 August 30 2024: overlaid by 924
508	Massachusetts (Berkley, Dennis, Douglas, Easton, Edgartown, Oakham, Oxford, Upton, and southeastern Massachusetts)	July 16, 1988	split of 617 1997: split to create 978 2001: overlaid by 774
509	Washington (all of eastern Washington, including Spokane, Ellensburg, Pullman, the Tri-Cities area, Walla Walla, Wenatchee, and Yakima)	1956	split of 206
510	California (coastal regions of the East Bay: Oakland, Fremont, Hayward, Richmond, Berkeley, and Alameda)	September 2, 1991	used until 1981 for TWX service split of 415 1998: split to create 925 2019: overlaid by 341
511	Not assignable; N11 code for local information for transportation and road conditions, local police non-emergency services
512	Texas (Austin, San Marcos, and parts of central Texas)	1947	1992: split to create 210 1999: split to create 361 2013: overlaid by 737
513	Ohio (Cincinnati, Middletown, Hamilton, Lebanon, and parts of southern and southwestern Ohio; this area code used to also include Dayton)	1947	1996: split to create 937 2023: overlaid by 283
514	Quebec (Montreal metropolitan area)	1947	1957: split to create 819 1998: split to create 450 2006: overlaid by 438 2022: overlaid by 263
515	Iowa (Des Moines, Ames, Fort Dodge, Jefferson, Indianola, and most of north-central Iowa)	1947	2000: split to create 641
516	New York (Nassau County, including Hempstead and Mineola)	1951	split of 914 1999: split to create 631 2023: overlaid by 363
517	Michigan (Lansing, Jackson, Charlotte, Deerfield, Addison, and most of south-central Michigan)	1947	2000: split to create 989
518	New York (Albany, Schenectady, Plattsburgh, Saranac Lake, Lake George, Westport, and most of northeastern New York)	1947	2017: overlaid by 838
519	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, Brantford, Guelph, and most of southwestern Ontario)	1953	created from parts of 416 and 613 1957: split to create a part of 705 2006: overlaid by 226 2016: overlaid by 548 2023: overlaid by 382
520	Arizona (Tucson, Nogales, Fort Huachuca, and most of southeastern Arizona)	March 19, 1995	split of 602 2001: split to create 928
521	personal communications services	September 21, 2017
522	personal communications services	August 1, 2016
523	personal communications services	November 13, 2018
524	personal communications services	July 12, 2019
525	personal communications services	July 13, 2020
526	personal communications services	January 28, 2021
527	personal communications services	September 29, 2021
528	personal communications services	March 2, 2022
529	personal communications services	September 16, 2022
530	California (Redding, Auburn, Chico, Davis, the California shore of Lake Tahoe, Placerville, Susanville, Truckee, Yreka, and most of northeastern California)	November 1, 1997	split of 916 2025: to be overlaid by 837
531	Nebraska (Omaha, Lincoln, Norfolk, Superior, and most of eastern Nebraska)	March 26, 2011	overlaid on 402
532	personal communications services	2024	overlaid on area codes 500, 521, 522, 523, 524, 525, 526, 527, 528, 529, 533, 544, 566, 577, and 588
533	personal communications services	September 26, 2009
534	Wisconsin (Wausau, Eau Claire, Rhinelander, and most of northern Wisconsin)	August 14, 2010	overlaid on 715
535	not in use; available for personal communications services
536	not in use; available for geographic assignment
537	Ontario (Niagara Falls Region (including St. Catharines), Hamilton, and Greater Toronto Area, except for Toronto)		reserved as a fifth area code to overlay 905/289/365/742 with no set date of implementation
538	not in use; available for personal communications services
539	Oklahoma (Tulsa, Bartlesville, McAlester, Muskogee, Henryetta, and northeastern Oklahoma)	April 1, 2011	overlaid on 918
540	Virginia (Fredericksburg, Roanoke, Blacksburg, Harrisonburg, Lexington, Staunton, Winchester, and parts of north-central Virginia)	July 15, 1995	split of 703 2001: split to create 276 2022: overlaid by 826
541	Oregon (Eugene, Bend, Corvallis, Medford, Pendleton, and all of Oregon, except metropolitan northwestern Oregon, including Portland, Salem, Astoria, etc.)	November 5, 1995	split of 503 2010: overlaid by 458
542–543	not in use; available for personal communications services
544	personal communications services	December 15, 2010
545–547	not in use; available for personal communications services
548	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	June 4, 2016	overlaid on 226/516 2023: overlaid by 382
549–550	not in use; available for personal communications services
551	New Jersey (Bergen County and Hudson County)	December 29, 2001	overlaid on 201
552–554	not in use; available for personal communications services
555	not in use; code is reserved for directory assistance applications		1-NPA-555-01XX is used for fictional telephone numbers; 1-NPA-555-1212 is used for directory assistance; and other 1-NPA-555-XXXX numbers can be used for other 555 services
556	not in use; available for personal communications services
557	Missouri (St. Louis, St. Louis County, Florissant, Crestwood, Hazelwood, Kirkwood, and surrounding suburbs of St. Louis)	August 12, 2022	overlaid on 314
558	not in use; available for personal communications services
559	California (Fresno, Hanford, Madera, Tulare, Visalia, and parts of the San Joaquin Valley)	November 14, 1998	split of 209 2025: to be overlaid by 357
560	not in use; available for geographic assignment
561	Florida (Palm Beach County, including Palm Beach, West Palm Beach, Boca Raton, Boynton Beach, etc.)	May 13, 1996	split of 407 2002: split to create 772 2023: overlaid with 728
562	California (Downey, Long Beach, Whittier, Norwalk, La Habra, Lakewood, Pico Rivera, and most of southeastern Los Angeles County)	January 25, 1997	split of 310
563	Iowa (Davenport, Dubuque, Clinton, Bettendorf, and most of eastern and northeastern Iowa)	March 25, 2001	split of 319
564	Washington (Olympia, Vancouver, Bellingham, Bremerton, Port Angeles, Aberdeen, and all of western Washington)	August 28, 2017	overlaid on 360
565	not in use; available for geographic assignment
566	personal communications services	April 17, 2012
567	Ohio (Toledo area and most of northwestern Ohio)	January 1, 2002	overlaid on 419
568	Alberta (all)		reserved as a fifth area code to overlay 403/780/587/825/368 with no set date of implementation
569	not in use; available for personal communications services
570	Pennsylvania (the Wyoming Valley, including Scranton and Wilkes-Barre; Bloomsburg; Danville; Nanticoke; Williamsport; and most of northeastern Pennsylvania)	December 5, 1998	split of 717 2013: overlaid by 272
571	Virginia (Washington, D.C. suburbs, including Arlington and Alexandria)	March 1, 2000	overlaid on 703
572	Oklahoma (Oklahoma City, Stillwater, Edmond, Norman, Shawnee, and most of central Oklahoma)	May 24, 2021	overlaid on 405
573	Missouri (Columbia, Jefferson City, Hannibal, Cape Girardeau, Farmington, Lake of the Ozarks, Poplar Bluff, and most of eastern Missouri excluding the St. Louis metropolitan area)	January 7, 1996	split of 314 2024: overlaid by 235
574	Indiana (South Bend, Elkhart, Goshen, Logansport, and most of north-central Indiana)	January 15, 2002	split of 219
575	New Mexico (Las Cruces, Roswell, Carlsbad Caverns National Park, Socorro, Taos, and Truth or Consequences; excludes central (Albuquerque and its suburbs) and northwestern New Mexico)	October 7, 2007	split of 505
576	not in use; available for geographic assignment
577	personal communications services	March 27, 2014
578	not in use; available for personal communications services
579	Quebec (central southern Quebec; surrounds City of Montreal)	August 21, 2010	overlaid on 450 2022: overlaid by 354
580	Oklahoma (Ponca City, Ada, Ardmore, Enid, Lawton, Elk City, and most of southern and western Oklahoma)	November 1, 1997	split of 405
581	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	September 19, 2008	overlaid on 418 2018: overlaid by 367
582	Pennsylvania (Erie, State College, Altoona, Clearfield, Emporium, Johnsonburg, Johnstown, Meyersdale, Ridgway, Somerset, and most of northwestern and parts of central Pennsylvania)	May 1, 2021	overlaid on 814
583	not in use; available for geographic assignment
584	Manitoba	October 29, 2022	overlaid on 204/431
585	New York (Rochester, Batavia, and much of western New York)	November 15, 2001	split of 716
586	Michigan (Macomb County)	September 22, 2001	split of 810
587	Alberta (all)	September 19, 2008	overlaid on 403 and 780 2016: overlaid by 825 2022: overlaid by 368 568 reserved as a fifth area code for the region.
588	personal communications services	September 9, 2015
589	not in use; available for personal communications services
590–599	not in use; reserved for potential North American Numbering Plan expansion

600–699

Code	Territory or use	Date	Notes
600	Canadian non-geographic tariffed: teleprinter, caller-pays mobile, etc.	October 1, 1993	rarely used, but serves some satellite phones in the Canadian high Arctic Canadian TWX service used area code 610 until 1992, when it was exchanged for 600. 2015: 622 was activated for Canadian non-geographic use 2023: 622 was overlaid with 633 for non-geographic use
601	Mississippi (Jackson, Hattiesburg, Meridian, Natchez, Vicksburg, and most of central Mississippi)	1947	created for all of Mississippi 1997: split to create 228 1999: split to create 662 2005: overlaid by 769
602	Arizona (Phoenix metropolitan area; primarily the city of Phoenix)	1947	created for all of Arizona 1995: split to create 520 1999: split to create 480 and 623 2023: recombined with 480 and 623 into an overlay complex for the Phoenix metropolitan area
603	New Hampshire (all)	1947
604	British Columbia (Metro Vancouver Regional District, Fraser Valley Regional District, Whistler, and the remaining portion of 604 not part of an overlay complex)	1947	created for all of British Columbia 1996: split to create 250 2001: partly overlaid by 778 2008: the overlay was extended to all of 604 as well as 250 2013: overlaid by 236 2019: overlaid by 672
605	South Dakota (all)	1947
606	Kentucky (Ashland, Pikeville, Hazard, Somerset, London, Corbin, Maysville, and much of eastern Kentucky)	1955	split of 502 2000: split to create 859
607	New York (Binghamton, Elmira, Cortland, Norwich, Ithaca, and most of south-central New York)	1954	created from parts of 315 and 716
608	Wisconsin (Madison, La Crosse, Platteville, Beloit, and most of southwestern Wisconsin)	1955	created from parts of 414 and 715 2023: to be overlaid by 353
609	New Jersey (Trenton, Atlantic City, Princeton, and most of central & southeastern New Jersey)	1956	split of 201 1999: split to create 856 2018: overlaid by 640
610	Pennsylvania (Chester, Lehigh Valley, Norristown, Reading; parts of southeastern Pennsylvania)	January 8, 1994	used for Canadian TWX service until 1992 split of 215 1999: overlaid by 484 2022: overlaid by 835
611	Not assignable; N11 code for repair service for land-line telephones, customer service for wireless carriers
612	Minnesota (Minneapolis, Fort Snelling, St. Anthony, and Richfield)	1947	1954: split to create 507 1996: split to create 320 1998: split to create 651 2000: split to create 763 and 952
613	Ontario (Ottawa metropolitan area and southeastern Ontario)	1947	1953: split to create a part of 519 1957: split to create a part of 705 2010: overlaid by 343 2022: overlaid by 753
614	Ohio (Columbus and Franklin County)	1947	1997: split to create 740 2016: overlaid by 380
615	Tennessee (Northern Middle Tennessee including Nashville^[11])	1954	split of 901 1995: split to create 423 1997: split to create 931 2015: overlaid by 629
616	Michigan (Grand Rapids, Greenville, Holland, Ionia, Zeeland, and most of southwestern Michigan)	1947	1961: split to create 906 1999: split to create 231 2002: split to create 269
617	Massachusetts (Belmont, Brookline, Chelsea, Everett, Milton, Quincy, Watertown, Winthrop, and close-in Boston suburbs)	1947	1988: split to create 508 1997: split to create 781 2001: overlaid by 857
618	Illinois (Carbondale, Alton, Belleville, Cahokia, Centralia, Edwardsville, Marion, Metropolis, Vandalia, and most of southern Illinois)	1947	2023: overlaid by 730
619	California (San Diego and suburbs)	1982	split of 714 1997: split to create 760 1999: split to create 858 2017: merged with 858 as an overlay
620	Kansas (southern Kansas not including the Wichita Metropolitan Area)	February 3, 2001	split of 316
621	Texas (Houston area)	January 23, 2025^[3]	to be overlaid on 713/281/832/346
622	Canadian non-geographic	March 23, 2015	overlaid by 633
623	Arizona (Phoenix metropolitan area; primarily the West Valley)	March 1, 1999	created by three-way split of 602 (along with 480) 2023: combined with 602 and 480 into an overlay complex for the Phoenix metropolitan area
624	New York (Buffalo, Niagara Falls, Olean, and parts of western New York)	November 16, 2023	overlaid on 716
625	not in use; available for geographic assignment
626	California (San Gabriel Valley)	June 14, 1997	split of 818
627	not in use; available for geographic assignment		originally assigned as part of a 3-way split of 707 (northwestern California) but was canceled
628	California (San Francisco, Daly City, Brisbane, and most of Marin County)	March 21, 2015	overlaid on 415
629	Tennessee (Middle Tennessee, including Nashville and surrounding area)	March 28, 2015	overlaid on 615
630	Illinois (western suburbs of Chicago, including DuPage, central and southern Kane, northern Kendall, far northern Will, and small portions of Cook counties)	August 3, 1996	split of 708 2007: overlaid by 331
631	New York (Suffolk County on Long Island)	November 1, 1999	split of 516 2016: overlaid by 934
632	not in use; available for geographic assignment
633	Canadian non-geographic	May 15, 2023	Overlaid on area code 622 on May 15th 2023
634–635	not in use; available for geographic assignment
636	Missouri (St. Charles, Chesterfield, Union, Troy, and parts of east-central Missouri)	May 22, 1999	split of 314
637–638	not in use; available for geographic assignment
639	Saskatchewan	May 25, 2013	overlaid on 306; originally planned as 474, but was changed to avoid confusion with central office codes^[4] 2021: overlaid by 474
640	New Jersey (Trenton, Atlantic City, Princeton, and most of central & southeastern New Jersey)	September 17, 2018	overlaid on 609
641	Iowa (Mason City, Oskaloosa, Creston, Pella, Ottumwa, Britt, Clear Lake, Fairfield, and parts of central Iowa)	July 9, 2000	split of 515
642–643	not in use; available for geographic assignment
644	not in use; reserved for Canadian non-geographic assignment
645	Florida (Miami-Dade County and the Florida Keys)	August 4, 2023	overlaid on 305/786
646	New York (New York City: Manhattan only, except for Marble Hill)	July 1, 1999	overlaid on 212 and a part of 917 2017: overlaid by 332 mnemonic: MHN
647	Ontario (Toronto)	March 5, 2001	overlaid on 416 2013: overlaid by 437 2025: to be overlaid by 942 area code 387 is reserved as a fifth code for the region
648	not in use; available for geographic assignment
649	The Turks and Caicos Islands (all)	June 1, 1997	split of 809
650	California (Daly City, South San Francisco, Palo Alto, Redwood City, Menlo Park, Mountain View, San Mateo, Santa Clara)	August 2, 1997	split of 415
651	Minnesota (St. Paul, Eagan, Lindstrom, Red Wing, Hastings, Stillwater, and a part of east-central Minnesota)	July 12, 1998	split of 612
652–654	not in use; available for geographic assignment
655	not in use; reserved for Canadian non-geographic assignment
656	Florida (all of Hillsborough County, including Tampa and its suburbs, MacDill Air Force Base, and Plant City, and also the inland areas of Pasco County and Oldsmar in Pinellas County^[12])	February 22, 2022	overlaid on 813^[13]
657	California (Northern Orange County: Anaheim, Fullerton, Garden Grove, Huntington Beach, Orange, Santa Ana, and portions Newport Beach and Costa Mesa)	September 23, 2008	overlaid on 714
658	Jamaica	April 30, 2019	overlaid on 876
659	Alabama (Birmingham, Tuscaloosa, and parts of western and central Alabama)	November 12, 2019	overlaid on 205^[14]
660	Missouri (Sedalia, Kirksville, Maryville, Mexico, Whiteman Air Force Base, and a part of north-central Missouri)	October 12, 1997	split of 816
661	California (Northern Los Angeles County, including Lancaster, Palmdale, and Santa Clarita; and most of Kern County, including Bakersfield, Mojave, and Edwards Air Force Base)	February 13, 1999	split of 805
662	Mississippi (Tupelo, Columbus, Corinth, Greenville, Greenwood, Starkville, and most of northern Mississippi)	April 19, 1999	split of 601 2026: to be overlaid by 471
663	not in use; available for geographic assignment
664	Montserrat (all)	July 1, 1996	split of 809 mnemonic: MOI
665	not in use; available for geographic assignment
666	not in use; available for non-geographic assignment		easily recognizable code (ERC)
667	Maryland (all counties and cities which touch the Chesapeake Bay, the Atlantic Ocean, or Delaware, except for St. Mary's County (in 301))	March 24, 2012	created as an overlay of 410 and 443
668	not in use; available for geographic assignment
669	California (San Jose, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Milpitas, Mountain View, Santa Clara, Sunnyvale, and Silicon Valley)	November 20, 2012	overlaid on 408
670	Northern Mariana Islands	July 1, 1997	Created for membership in NANP 670 was the former country code for the islands
671	Guam (includes Andersen Air Force Base)	July 1, 1997	Created for membership in NANP 671 was the former country code for the island
672	British Columbia, and the isolated border town of Hyder, Alaska, US	May 4, 2019	overlaid on 604, 250, 778, and 236^[15] 2025: to be overlaid by 257
673–676	not in use; available for geographic assignment
677	not in use; reserved for Canadian non-geographic assignment
678	Georgia (Metro Atlanta)	January 6, 1998	overlaid on 404 and 770 2010: overlaid by 470
679	Michigan (Dearborn, the Grosse Pointes, Detroit, and the latter's enclaves of Hamtramck and Highland Park)	November 7, 2025^[3]	to be overlaid on 313
680	New York (Syracuse, Utica, Watertown, and north-central New York)	March 11, 2017	overlaid on 315
681	West Virginia	March 28, 2009	overlaid on 304
682	Texas (Fort Worth, Arlington, Grand Prairie, Grandview, Weatherford)	October 7, 2000	overlaid on 817
683	Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	June 18, 2022	overlaid on 705/249 460 reserved as a fourth area code for the region.
684	American Samoa (the former country code for this possession and unorganized territory of the United States)	October 2, 2004	2004: inclusion in NANP
685	not in use; available for geographic assignment
686	Virginia (the Richmond Metropolitan Area, including Petersburg and the Northern Neck and Middle Peninsula)	February 1, 2024	overlaid on 804
687	not in use; available for geographic assignment
688	not in use; reserved for Canadian non-geographic assignment
689	Florida (Orlando, Sanford, St. Cloud, Kissimmee, and a part of east-central Florida)	June 4, 2019	overlaid on 407
690–699	not in use; reserved for potential North American Numbering Plan expansion

700–799

Code	Territory or use	Date	Notes
700	Implemented for carrier internal use	1984
701	North Dakota (all)	1947
702	Nevada (almost all of Clark County, including all of the Las Vegas Valley, including Henderson and Boulder City)	1947	created for all of Nevada 1998: split to create 775 2014: overlaid by 725
703	Virginia (Northern Virginia: mostly the suburbs of Washington, D.C., including Alexandria, Arlington County, Fairfax County, Prince William County, and eastern Loudoun County)	1947	created for all of Virginia 1973: split to create 804 1995: split to create 540 2000: overlaid by 571
704	North Carolina (Charlotte, Concord, Gastonia, Salisbury, and much of south-central North Carolina)	1947	created for all of North Carolina 1954: split to create 919 1998: split to create 828 2001: overlaid by 980
705	Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	1957	created from parts of 519 and 613 1962: split to create 807 2011: overlaid by 249 2022: overlaid by 683 460 reserved as a fourth area code for the region.
706	Georgia (Athens, Augusta, Columbus, Calhoun, Dalton, Rome, and much of northwestern, northeastern and eastern Georgia, with an exclave in midwestern Georgia)	May 3, 1992	split of 404 2007: overlaid by 762 prior to 1990, served portions of Baja California, Mexico one of the few non-contiguous area codes in North America
707	California (Vallejo, Crescent City, Eureka, Redwoods National Park, Santa Rosa, Ukiah, and most of northwestern California)	1959	split of 415 2023: to be overlaid by 369
708	Illinois (western and southern portions of suburban Cook County and far eastern sections of Will County	November 11, 1989	split of 312 1996: split twice to create 847 and 630 2022: overlaid by 464
709	Newfoundland and Labrador (all)	1962	split of 506
710	US Government special services	1984	used until 1981 for TWX service
711	Not assignable; N11 code for telecommunications device for the deaf
712	Iowa (Sioux City, Council Bluffs, Denison, and most of western Iowa)	1947
713	Texas (Houston area) — overlays with 281, 346, and 832	1947	1983: split to create 409 1996: split to create 281 713 and 281 were later merged into an overlay 1999: 713 and 281 were further overlaid by 832 2014: 713 and 281 were further overlaid by 346
714	California (Northern Orange County: Anaheim, Fullerton, Garden Grove, Huntington Beach, Orange, Santa Ana, and portions of Newport Beach, Costa Mesa, and Tustin)	1951	split of 213 1982: split to create 619 1992: split to create 909 1998: split to create 949 2008: overlaid by 657
715	Wisconsin (Wausau, Eau Claire, Rhinelander, and most of northern Wisconsin)	1947	1955: split to create a part of 608 2010: overlaid by 534
716	New York (Buffalo, Niagara Falls, Olean, and parts of western New York)	1947	1954: split to create a part of 607 2002: split to create 585 2023: to be overlaid by 624
717	Pennsylvania (Harrisburg, Gettysburg, Lancaster, York, and most of south-central Pennsylvania)	1947	1998: split to create 570 2017: overlaid by 223
718	New York (The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	September 1, 1984	split of 212, and originally comprised only Brooklyn, Queens, and Staten Island 1992: The Bronx split off from 212 to become a part of 718 1992: overlaid by 917 1999: overlaid by 347 2011: overlaid by 929
719	Colorado (Colorado Springs, Pueblo, Florence, Leadville, Limon, Trinidad, La Junta, and most of southeastern Colorado)	March 5, 1988	split of 303
720	Colorado (Denver, Boulder, Longmont, Aurora, Golden, Limon, Centennial; central Colorado)	June 1, 1998	overlaid on 303 2022: overlaid by 983
721	Sint Maarten (all)	September 30, 2011	joined the NANP in 2011; previously country code 599.^[16]
722	not in use; available for non-geographic assignment		easily recognizable code (ERC)
723	not in use; available for geographic assignment
724	Pennsylvania (Washington, Greensburg, Indiana, New Castle, Uniontown, Butler, and the majority of Southwestern Pennsylvania outside of Pittsburgh's Allegheny County)	February 1, 1998	split of 412 2001: overlaid by 878
725	Nevada (almost all of Clark County, including all of the Las Vegas Valley, including Henderson, and Boulder City)	June 3, 2014	overlaid on 702
726	Texas (San Antonio metropolitan area)	October 23, 2017	overlaid on 210 mnemonic: SAN Antonio
727	Florida (all of Pinellas County (except Oldsmar which uses area codes 656 and 813),^[12] including St. Petersburg, Clearwater, Dunedin, Palm Harbor, Tarpon Springs, and the coastal parts of Pasco County)	July 1, 1998	split of 813
728	Florida (Palm Beach County, including Palm Beach, West Palm Beach, Boca Raton, Boynton Beach, etc.)	March 10, 2023	overlaid 2023 on 561
729	Tennessee (two discontiguous portions of East Tennessee in the northeast and in the southeast)	March 5, 2025	to be overlaid on 423^[3]
730	Illinois (Carbondale, Alton, Belleville, Cahokia, Centralia, Edwardsville, Marion, Metropolis, Vandalia, and most of southern Illinois)	July 7, 2023	overlaid on 618
731	Tennessee (most of West Tennessee, excluding Metropolitan Memphis and Shelby County (area code 901), but including Dyersburg, Jackson, Martin, Paris, Union City, and Crockett County)	February 12, 2001	split of 901
732	New Jersey (New Brunswick, Lakewood, Neptune, Fort Dix, and most of east-central New Jersey)	June 1, 1997	split of 908 2001: overlaid by 848 mnemonic: SEA
733	not in use; available for non-geographic assignment		easily recognizable code (ERC)
734	Michigan (Ann Arbor, Hell, Monroe, Plymouth, Romulus, Wayne, Ypsilanti, and the southwestern suburbs of Detroit)	December 13, 1997	split of 313
735–736	not in use; available for geographic assignment
737	Texas (Austin and suburbs)	July 1, 2013	overlaid on 512
738	California (nearly the entire city of Los Angeles outside of the San Fernando Valley and smaller cities and unincorporated areas of Los Angeles County immediately to the south or east)	November 1, 2024	overlaid on 213/323
739	not in use; available for geographic assignment
740	Ohio (suburban Columbus, central Ohio outside of Franklin County, excluding the Marysville area, together with southeastern Ohio: Athens, Lancaster, Cambridge, Delaware, Ironton, Marietta, Mt. Vernon, Newark, Portsmouth, Steubenville, Washington Court House, and Zanesville)	December 6, 1997	split of 614 2015: overlaid by 220
741	not in use; available for geographic assignment
742	Ontario (Niagara Falls Region, Hamilton, St. Catharines, suburbs of the Greater Toronto Area, and southeastern Ontario)	October 16, 2021	overlaid on 289/365/905^[8] 537 reserved as a fifth area code for the region.
743	North Carolina (the Piedmont Triad, Wilkesboro, Roxboro, and most of northwestern North Carolina)	May 23, 2016	overlaid on 336
744	not in use; available for non-geographic assignment		easily recognizable code (ERC)
745–746	not in use; available for geographic assignment
747	California (the San Fernando Valley portion of Los Angeles County, including Burbank, Canoga Park, Encino, Glendale, North Hollywood, Northridge, Panorama City, Reseda, San Fernando, Sylmar, Tarzana, Van Nuys, and Woodland Hills)	May 18, 2009	overlaid on 818
748	Colorado (Grand Junction, Aspen, Durango, Estes Park, Fort Collins, Frisco, Glenwood Springs, Greeley, Purgatory, Steamboat Springs, Telluride, Vail, Rocky Mountain National Park, Dinosaur National Monument, and most of north-central, south-central, and western Colorado)	July 7, 2025	to be overlaid on 970
749–751	not in use; available for geographic assignment
752	not in use; available for geographic assignment		originally reserved to overlay 909, but abandoned by number pooling
753	Ontario (Ottawa metropolitan area and southeastern Ontario)	March 26, 2022	overlaid on 613/343
754	Florida (Broward County)	August 1, 2001	overlaid on area code 954
755	not in use; available for non-geographic assignment		easily recognizable code (ERC)
756	not in use; available for geographic assignment
757	Virginia (Part of Hampton Roads and the Eastern Shore of Virginia)	July 1, 1996	split of 804 2022: overlaid by area code 948
758	Saint Lucia (all)	July 1, 1996	split of 809 mnemonic: SLU
759	not in use; available for geographic assignment
760	California (most of the desert and mountain portions of the southeastern two-thirds of California)	March 22, 1997	split of 619 this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997 was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled 2009: overlaid by 442
761	not in use; available for geographic assignment
762	Georgia (Athens, Augusta, Columbus, Calhoun, Dalton, Rome, and much of northwestern, northeastern and eastern Georgia, with an exclave in midwestern Georgia)	May 16, 2006	overlaid on 706
763	Minnesota (Brooklyn Park, Plymouth, Maple Grove, Monticello, Elk River, Fridley, Blaine, and the northwest suburban area of Minneapolis)	February 27, 2000	created by a three-way split of 612 (along with 952)
764	not in use; available for geographic assignment		was assigned for numbering relief to 650 (western San Francisco Bay, including San Mateo County), but this has been suspended indefinitely
765	Indiana (Kokomo, Lafayette, Marion, Muncie, Richmond, West Lafayette, and most of central Indiana excluding Indianapolis and immediate suburbs)	February 1, 1997	split of 317
766	not in use; available for non-geographic assignment		easily recognizable code (ERC)
767	Commonwealth of Dominica (all)	October 1, 1997	split of 809 mnemonic: ROS for Roseau, Dominica's largest city
768	not in use; available for geographic assignment
769	Mississippi (Jackson, Hattiesburg, Meridian, Natchez, Vicksburg, and most of central Mississippi)	March 14, 2005	overlaid on 601
770	Georgia (Marietta, Carrollton, Gainesville, Jonesboro, Lawrenceville, Roswell, Stone Mountain, Snellville, Cartersville, and much of north-central Georgia outside of Atlanta's Interstate 285 Perimeter Highway)	August 1, 1995	split of 404 1998: overlaid by 678 covers metropolitan areas outside of Atlanta and fully encircles Atlanta's area code 404
771	Washington, D.C. (all)	November 9, 2021	overlaid on 202
772	Florida (Fort Pierce, Port Saint Lucie, Sebastian, Stuart, Vero Beach, all of Indian River County, and Martin County)	February 11, 2002	split of 561
773	Illinois (City of Chicago, excluding downtown)	October 12, 1996	split of 312 2009: overlaid by 872
774	Massachusetts (Berkley, Dennis, Douglas, Easton, Edgartown, Oakham, Oxford, Upton, and southeastern Massachusetts)	May 2, 2001	overlaid on 508
775	Nevada (Carson City, Reno, Elko, Ely, Sparks, Winnemucca, Great Basin National Park, Naval Air Station Fallon, and all of Nevada, except for most of Clark County in southernmost Nevada)	December 12, 1998	split of 702
776	not in use; available for geographic assignment
777	not in use; available for non-geographic assignment		easily recognizable code (ERC)
778	British Columbia (all, and the isolated border town of Hyder, Alaska, US)	November 3, 2001	created as a concentrated overlay of 604 extended in 2008 to cover all of 604 and 250 2013: overlaid by 236 2019: overlaid by 672 2025: to be overlaid by 257
779	Illinois (much of northern Illinois outside Chicago and its immediate surrounding suburbs: Rockford and its suburbs, Belvidere, La Salle, Peru, DeKalb, Sycamore, Freeport, Dixon, Sterling, Rock Falls, Ottawa, Morris, Princeton, Mendota, Rochelle, Sandwich, Streator, Pontiac, Kankakee, and some outlying Chicago suburbs such as Harvard, McHenry, Crystal Lake, Woodstock, Plainfield, Joliet, Romeoville, Lockport, New Lenox, Frankfort, Minooka, Channahon, and Shorewood)	March 17, 2007	overlaid on 815
780	Alberta (Edmonton, Jasper, Grande Prairie, Peace River, and all of northern Alberta)	May 18, 1999	split of 403 2008: overlaid by 587 2016: overlaid by 825 2022: overlaid by 368 568 reserved as a fifth area code for the region.
781	Massachusetts (Canton, Hanson, Lincoln, Nahant, Plympton, Revere, Stoughton, Winchester, and east-central Massachusetts)	September 1, 1997	split of 617 2001: overlaid by 339
782	Nova Scotia and Prince Edward Island	November 30, 2014	overlaid on 902 851 reserved as a third area code for the region.
783	not in use; available for geographic assignment
784	Saint Vincent and the Grenadines (all)	June 1, 1998	split of 809 mnemonic: SVG or SVI
785	Kansas (Topeka, Salina, Colby, Lawrence, Manhattan, and all of northern and central Kansas not including the Kansas City Metropolitan Area)	July 20, 1997	split of 913
786	Florida (Miami-Dade County and the Florida Keys)	March 1, 1998	overlaid on 305 only in Miami-Dade County 2008: overlay extended to the Florida Keys 2023: overlaid with 645 mnemonic: SUN
787	Puerto Rico	March 1, 1996	split of 809 2001: overlaid by 939 mnemonic: PUR or PTR
788	not in use; available for non-geographic assignment		easily recognizable code (ERC)
789	not in use; available for geographic assignment
790–799	not in use; reserved for potential North American Numbering Plan expansion

800–899

Code	Territory or use	Date	Notes
800	toll-free telephone service	1966	created in 1966 see also 822, 833, 844, 855, 866, 877, 880–887, 888, and 889
801	Utah (Counties of Davis, Morgan, Salt Lake, Utah, and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo)	1947	created for all of Utah 1997: split to create 435 2009: overlaid by 385
802	Vermont (all)	1947
803	South Carolina (Columbia, Rock Hill, Sumter, Aiken, and most of central South Carolina)	1947	created for all of South Carolina 1995: split to create 864 1998: split twice to create 843 2020: overlaid by 839
804	Virginia (the Richmond Metropolitan Area, including Petersburg and the Northern Neck and Middle Peninsula)	June 24, 1973	split of 703 1996: split to create 757 2001: split to create 434 2024: to be overlaid by 686
805	California (Ventura, San Luis Obispo, and Santa Barbara Counties)	1957	split of 213 1999: split to create 661 2018: overlaid by 820
806	Texas (Lubbock, Amarillo, Canadian, Canyon, Dalhart, and the entire Texas Panhandle)	1957	created from parts of 817 and 915
807	Ontario (Northwestern Ontario: Thunder Bay, Kenora, Dryden, Greenstone)	1962	split of 705
808	Hawaii (all of the Hawaiian Islands to Midway Atoll and major Hawaiian cities including Honolulu, Kailua, Mililani, Haleiwa, Hilo, Kahului, Lihue, etc.; plus Wake Island)	1957
809	Dominican Republic	1958	originally assigned in 1958 to Bermuda and most Caribbean islands 1995: split to create 441 1996: split to create 787, 268, 246, 664, 758, 345, 242, and 869 1997: split to create 264, 876, 340, 649, 868, 284, 767, and 473 1998: split to create 784 by 2000, served the Dominican Republic exclusively 2005: overlaid by 829 2009: overlaid by 849
810	Michigan (Port Huron, Flint, Lapeer, and the Michigan "Thumb")	December 1, 1993	used until 1981 for TWX service split of 313 1997: split to create 248 2001: split to create 586
811	Not assignable; N11 code for regional information		in the US, the FCC adopted it as the local underground utility assistance service in 2007 in Canada, the CRTC reserved it for non-urgent telehealth services 2005: though not all provinces and territories have yet adopted it formerly used for mobile customer service on some carriers (now 611) formerly used for some local emergency numbers in Jamaica (now 911)
812	Indiana (Southern Indiana, including Bloomington, Evansville, Terre Haute, Columbus, Jeffersonville, Lawrenceburg, Madison, and New Albany)	1947	2015: overlaid by 930
813	Florida (all of Hillsborough County, including Tampa and its suburbs, MacDill Air Force Base, and Plant City; and the inland areas of Pasco County and Oldsmar in Pinellas County^[12])	1953	split of 305 to give Florida more than one area code 1995: split to create 941 1998: split to create 727 2022: overlaid by 656^[13]
814	Pennsylvania (Erie, State College, Altoona, Clearfield, Emporium, Johnsonburg, Johnstown, Meyersdale, Ridgway, Somerset, and most of northwestern and parts of central Pennsylvania)	1947	2021: overlaid by 582
815	Illinois (much of northern Illinois outside Chicago and its immediate surrounding suburbs: Rockford and its suburbs, Belvidere, La Salle, Peru, DeKalb, Sycamore, Freeport, Dixon, Sterling, Rock Falls, Ottawa, Morris, Princeton, Mendota, Rochelle, Sandwich, Streator, Pontiac, Kankakee, and some outlying Chicago suburbs such as Harvard, McHenry, Crystal Lake, Woodstock, Plainfield, Joliet, Romeoville, Lockport, New Lenox, Frankfort, Minooka, Channahon, and Shorewood)	1947	1957: split to create a part of 309 2007: overlaid by 779
816	Missouri (Kansas City, St Joseph, Independence, Harrisonville, and parts of west-central Missouri)	1947	1950: split to create a part of 417 1997: split to create 660 2023: to be overlaid by 975
817	Texas (Fort Worth, Arlington, Grand Prairie, Grandview, Weatherford)	1953	created from parts of 214 and 915 1957: split to create a part of 806 1997: split to create 254 and 940 2000: overlaid by 682
818	California (the San Fernando Valley portion of Los Angeles County, including Burbank, Canoga Park, Encino, Glendale, North Hollywood, Northridge, Panorama City, Reseda, San Fernando, Sylmar, Tarzana, Van Nuys, and Woodland Hills)	January 7, 1984	split of 213 1997: split to create 626 2009: overlaid by 747
819	Quebec (Western Québec, except Montréal 514 and surrounding area 450: a large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivieres)	1957	split of 514 originally also covered a part of the Northwest Territories 1997: split to create a part of 867 (the portion of the area code serving the Northwest Territories and Nunavut) 2012: overlaid by 873 2022: overlaid by 468
820	California (Ventura, San Luis Obispo, and Santa Barbara Counties)	June 30, 2018	overlaid on 805
821	South Carolina (The Upstate, including Greenville, Spartanburg, Anderson, Clemson, and most of northwestern South Carolina)	August 19, 2024	overlaid on 864
822	not in use; available for toll-free assignment
823–824	not in use; available for geographic assignment
825	Alberta (all)	April 9, 2016	overlaid on 403, 780, and 587^[17] 2022: overlaid by 368
826	Virginia (Fredericksburg, Roanoke, Blacksburg, Harrisonburg, Lexington, Staunton, Winchester, and parts of north-central Virginia)	June 14, 2022	overlaid on 540
827	not in use; available for geographic assignment
828	North Carolina (Asheville, Franklin, Hickory, Murphy, Waynesville, and parts of western North Carolina)	March 22, 1998	split of 704
829	Dominican Republic	August 1, 2005	overlaid on 809
830	Texas (Del Rio, Kerrville, Eagle Pass, Fredericksburg, New Braunfels, and a part of the Rio Grande Valley)	July 7, 1997	split of 210
831	California (Monterey County, including Salinas and Monterey); San Benito County (including Hollister); and Santa Cruz County (including Santa Cruz and Watsonville)	July 11, 1998	split of 408
832	Texas (Houston Metropolitan Area and suburbs)	January 16, 1999	overlaid on 713 and 281 2014: overlaid by 346
833	toll-free telephone service	June 3, 2017	created^[18]
834	not in use; available for geographic assignment
835	Pennsylvania (Chester, Lehigh Valley, Norristown, Reading; parts of southeastern Pennsylvania)	September 2, 2022	overlaid on 610/484
836	not in use; available for geographic assignment
837	California (Redding, Auburn, Chico, Davis, the California shore of Lake Tahoe, Placerville, Susanville, Truckee, Yreka, and most of northeastern California)	January 31, 2025	to be overlaid on 530 California's 40th area code
838	New York (Albany, Schenectady, Plattsburgh, Saranac Lake, Lake George, Westport, and most of northeastern New York)	September 19, 2017	overlaid on 518
839	South Carolina (Columbia, Rock Hill, Sumter, Aiken, and most of central South Carolina)	May 26, 2020	overlaid on 803^[19]
840	California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, and Redlands)	February 23, 2021	overlaid on 909
841–842	not in use; available for geographic assignment
843	South Carolina (Charleston, Florence, Hilton Head Island, Myrtle Beach, Charleston Air Force Base, and most of southeastern South Carolina)	March 22, 1998	split of 803 2015: overlaid by 854 mnemonic: TIDes for being along the South Carolina Coast
844	toll-free telephone service	December 7, 2013	created
845	New York (Dutchess, Orange, Putnam, Rockland, Sullivan, and Ulster counties)	June 5, 2000	created by splitting from 914 2023: overlaid with 329
846	not in use; available for geographic assignment
847	Illinois (North and northwest suburbs of Chicago, including Lake, northern Cook, northern Kane, and extreme southeastern McHenry Counties; includes Evanston, Skokie, Niles, Park Ridge, Des Plaines, Mount Prospect, Arlington Heights, Palatine, Wheeling, Buffalo Grove, Barrington, Elk Grove Village, Schaumburg, Hoffman Estates, Elgin, Carpentersville, Algonquin, Lake in the Hills, Huntley, Hampshire, Cary, Lake Zurich, Fox Lake, Round Lake Beach, Antioch, Gurnee, Waukegan, Zion, Lake Forest, Vernon Hills, Libertyville, Mundelein, Northbrook, Glenview, Deerfield, Highland Park, Wilmette, Winnetka)	January 20, 1996	split of 708 2002: overlaid by 224
848	New Jersey (New Brunswick, Lakewood, Neptune, Fort Dix, and most of east-central New Jersey)	December 29, 2001	overlaid on 732
849	Dominican Republic	July 1, 2009	overlaid on 809 and 829
850	northwestern Florida (Appalachicola, Pensacola, Tallahassee, Quincy, Panama City, Naval Air Station Pensacola, Eglin Air Force Base and all of the Florida Panhandle)	June 23, 1997	split of 904 2021: overlaid by 448
851	Nova Scotia and Prince Edward Island		reserved as a third area code to overlay 902/782 with no set date of implementation
852–853	not in use; available for geographic assignment
854	South Carolina (Charleston, Florence, Hilton Head Island, Myrtle Beach, Charleston Air Force Base, and most of southeastern South Carolina)	October 19, 2015	overlaid on 843
855	toll-free telephone service	October 9, 2010	created as a further expansion of 800
856	New Jersey (Cherry Hill, Camden, Millville, Vineland, and most of southwestern New Jersey)	June 12, 1999	split of 609
857	Massachusetts (Belmont, Brookline, Chelsea, Everett, Milton, Quincy, Watertown, Winthrop, and close-in Boston suburbs)	May 2, 2001	overlaid on 617
858	California (San Diego and suburbs)	June 12, 1999	split of 619 2017: merged with 619 as an overlay
859	Kentucky (Lexington, Richmond, Danville, Covington, Florence, and northernmost Kentucky)	April 1, 2000	split of 606 mnemonic: UKY — the University of Kentucky is in Lexington, the area's biggest city by population
860	Northern and eastern Connecticut (Hartford, Bristol, Norwich, and northern and eastern Connecticut)	August 28, 1995	split of 203 2014: overlaid by 959
861	Illinois (Peoria, Bloomington, Moline, Rock Island, Galesburg; west-central Illinois)	February 24, 2023	overlaid on 309
862	New Jersey (northernmost part)	December 29, 2001	overlaid on 973
863	Florida (Lakeland, Bartow, Sebring, Winter Haven in south central Florida)	September 20, 1999	split of 941
864	South Carolina (The Upstate, including Greenville, Spartanburg, Anderson, Clemson, and most of northwestern South Carolina)	December 3, 1995	split of 803 2024: overlaid by 821 mnemonic: UNIversity — 24 colleges and universities reside in this area code, including Anderson University, Bob Jones University, Clemson University, Furman University, Converse College, Wofford College, and University of South Carolina Upstate
865	Tennessee (Knoxville, Alcoa, Athens, Clinton, Crossville, Dayton, Gatlinburg, Loudon, Maryville, Newport, Oak Ridge, Oliver Springs, Pigeon Forge, Rockwood, Sweetwater, etc., in east Tennessee)	November 1, 1999	split of 423 mnemonic: VOL — the University of Tennessee, whose sports teams are the "Volunteers", is in Knoxville, the area's biggest city by population
866	toll-free telephone service	July 29, 2000	created as a further expansion of 800
867	the Canadian Territories: Yukon, Northwest Territories, and Nunavut	October 21, 1997	created from parts of 403 and 819 mnemonic: TOP of the world mnemonic: 1867 was the year of Canada's confederation (formation; long-distance calls to the 867 area code must begin 1-867)
868	Trinidad and Tobago (all)	June 1, 1997	split of 809 mnemonic: TNT
869	Saint Kitts and Nevis (all)	October 1, 1996	split of 809
870	Arkansas (Texarkana, Jonesboro, Pine Bluff, and southern, eastern, and northeastern Arkansas)	April 14, 1997	split of 501 2024: overlaid by 327
871	not in use; available for geographic assignment in Canada
872	Illinois (Chicago)	November 7, 2009	overlay for 312 and 773, entered service on 7 November 2009^[20] mnemonic: USA
873	Quebec (Western Québec, except Montréal 514 and surrounding area 450: a large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivières)	September 15, 2012	overlaid on 819 2022: overlaid by 468
874–875	not in use; available for geographic assignment
876	Jamaica	May 1, 1997	split of 809 2018: overlaid by 658
877	toll-free telephone service	April 4, 1998	created
878	Pennsylvania (Pittsburgh) and suburbs	August 17, 2001	overlaid on 412 and area code 724
879	Newfoundland (all) and Labrador	March 17, 2024^[3]	was to overlay 709 24 November 2018; however, on 5 September 2017, its implementation was suspended when the exhaust date was recalculated for March 2024; its implementation date was planned for 20 May 2022, but its implementation was suspended when the exhaust date was recalculated for June 2028
880–887	not in use; available for toll-free assignment		Codes 880 through 882 were used (until 1 April 2004) to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877.^[21]
888	toll-free telephone service	March 1, 1996	created
889	not in use; available for toll-free assignment
890–899	not in use; reserved for potential North American Numbering Plan expansion

900–999

Code	Territory or use	Date	Notes
900	premium-rate telephone numbers	1971
901	Tennessee (Memphis, Covington, Germantown, Somerville, and extreme southwestern Tennessee, mostly in Shelby County)	1947	created for all of Tennessee 1954: split to create 615 2001: split to create 731
902	Nova Scotia and Prince Edward Island	1947	originally also covered New Brunswick 1955: split to give New Brunswick its own 506 area code Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782 851 reserved as a third area code for the region.
903	Texas (Tyler, Sherman, Longview, Marshall, Palestine, Jacksonville, Carthage, and Northeast Texas)	November 4, 1990	prior to October 18, 1980, the area code served Tijuana, Mexico, and adjacent areas bordering the United States split of 214 2003: overlaid by 430
904	Florida (Jacksonville, St. Augustine, Starke, and most of northeastern Florida)	July 11, 1965	split of 305 1995: split to create 352 1997: split to create 850 2001: split to create 386 2024: overlaid by 324
905	Ontario (Niagara Falls Region (including St. Catharines), Hamilton, and Greater Toronto Area, except for Toronto)	October 4, 1993	prior to 1991, was the area code for Mexico City split of 416 2001: overlaid by 289 2013: overlaid by 365 2021: overlaid by 742^[8] 537 reserved as a fifth area code for the region.
906	Michigan (Upper Peninsula: Sault Ste. Marie, Escanaba, Houghton, Iron Mountain, Marquette, Menominee, etc.)	March 19, 1961	split of 616
907	Alaska (all, except the lone border town of Hyder which uses the BC, Canada area codes of 236, 250, 672, or 778 depending on its assigned number)	1957
908	New Jersey (Alpha, Washington, Elizabeth, Warren, Plainfield, and west-central New Jersey)	November 1, 1990	split of 201 1997: split to create 732
909	California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside Counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, and Redlands)	November 14, 1992	split of 714 2004: split to create 951 2021: overlaid by 840
910	North Carolina (Fayetteville, Wilmington, Fort Liberty, Seymour Johnson Air Force Base, Jacksonville, Lumberton, and much of southeastern North Carolina)	November 14, 1993	used until 1981 for TWX service split of 919 1997: split to create 336 2022: overlaid by 472
911	Not assignable; N11 code for emergency services	1968
912	Georgia (Savannah, Statesboro, Vidalia, Waycross, Brunswick, Douglas, and southeastern Georgia)	1954	split of 404 to give Georgia two area codes 2000: split to create 229 and 478
913	Kansas (Kansas City, Kansas, Overland Park, Olathe, Lenexa, Leavenworth, Bonner Springs, De Soto, parts of eastern Kansas)	1947	1997: split to create 785
914	New York (Westchester County)	1947	1951: split to create 516 2000: split to create 845
915	Texas (all of El Paso County and portions of Hudspeth County)	1947	1953: split to create a part of 817 1957: split to create a part of 806 2003: split to create 325 and 432
916	California (the Sacramento Metropolitan Area)	1947	created for about one-third of California 1958: split to create 209 1997: split to create 530 2018: overlaid by 279
917	New York (New York City: all; mainly cell phones)	1992	overlaid on 212 and 718 1999: parts overlaid by 646 1999: parts overlaid by 347 2011: parts overlaid by 929 2017: parts overlaid by 332
918	Oklahoma (Tulsa, Bartlesville, McAlester, Muskogee, Henryetta, and northeastern Oklahoma)	1953	split of 405 and to give Oklahoma two area codes, one centered on Oklahoma City and the other centered on Tulsa 2011: overlaid by 539
919	North Carolina (the Research Triangle, including Raleigh, the state capital city; Durham, Cary, and Chapel Hill; and Goldsboro and other parts of north-central North Carolina)	1954	split of 704 to give North Carolina two area codes 1993: split to create 910 1998: split to create 252 2012: overlaid by 984
920	Wisconsin (Appleton, Sheboygan, Oshkosh, Green Bay, Manitowoc, Marquette, Fond du Lac, and parts of eastern Wisconsin, but not Milwaukee County)	July 26, 1997	split of 414 2023: to be overlaid by 274
921	not in use; available for geographic assignment
922	not in use; available for non-geographic assignment		easily recognizable code (ERC)
923	not in use; available for geographic assignment
924	Minnesota (Rochester, Mankato, Austin, Marshall, Winona, and most of southern Minnesota)	August 30, 2024^[3]	Overlaid on 507 on August 30th 2024. The 469th area code in the NANPA
925	California (inland regions of the East Bay: Livermore, Concord, Pleasant Hill, Walnut Creek, Martinez, Pleasanton, and Dublin, just east of the hills that ring San Francisco Bay)	March 14, 1998	split of 510
926	not in use; available for geographic assignment
927	not in use; available for geographic assignment		was reserved for cellular telephones in 407, but this has been cancelled
928	Arizona (except for Phoenix metropolitan area, Tucson metropolitan area, and some areas west and south of Tucson)	June 23, 2001	split of 520
929	New York (New York City: The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	April 16, 2011	overlaid on 347, 718, and a part of 917
930	Indiana (Southern Indiana, including Bloomington, Evansville, Terre Haute, Columbus, Jeffersonville, Lawrenceburg, Madison, and New Albany)	March 7, 2015	overlaid on 812
931	Tennessee (Southern Middle Tennessee)^[11]	September 15, 1997	split of 615
932	not in use; available for geographic assignment		once reserved as a third area code for West Virginia, but it was replaced by a 304-932 exchange area code + exchange number in Charleston
933	not in use; available for non-geographic assignment		easily recognizable code (ERC)
934	New York (Suffolk County on Long Island)	July 16, 2016	overlaid on 631
935	not in use; available for geographic assignment		assigned for relief in 619 (San Diego, California), but suspended indefinitely
936	Texas (Nacogdoches, Lufkin, Conroe, Huntsville, Center, and Southeast Texas)	February 19, 2000	split of 409
937	Ohio (Dayton, Springfield, and southwestern Ohio north and east of the Cincinnati metropolitan area)	September 28, 1996	split of 513 2020: overlaid by 326
938	Alabama (Huntsville, Anniston, Cullman, Decatur, Florence, Fort Payne, Gadsden, Madison, Sheffield, Tuscumbia)	July 10, 2010	overlaid on 256
939	Puerto Rico	September 15, 2001	overlaid on 787
940	Texas (the area immediately north of the Dallas–Fort Worth metroplex: Denton, Wichita Falls, Decatur, Gainesville, Vernon, etc.)	May 25, 1997	split of 817
941	Florida (Gulf Coast immediately south of Tampa Bay: all of Manatee County, Sarasota County, and Charlotte County; includes Bradenton, Port Charlotte, Sarasota, and Punta Gorda)	May 28, 1995	split of 813 1999: split to create 863 2002: split to create 239
942	will overlay 416/647/437 (Toronto metropolitan area)	April 26, 2025^[3]	will overlay 416/647/437, relief date 26 April 2025^[22]
943	Georgia (Metro Atlanta)	March 15, 2022	overlaid on area codes 404, 770, 678, and 470
944	not in use; available for non-geographic assignment		easily recognizable code (ERC)
945	Texas (Dallas–Fort Worth metroplex)	January 15, 2021	overlaid on 214, 469, and 972
946	not in use; available for geographic assignment
947	Michigan (Oakland County)	September 7, 2002	overlaid on 248
948	Virginia (Part of Hampton Roads and the Eastern Shore of Virginia)	May 9, 2022	overlaid on 757
949	California (Southern Orange County: Irvine, Lake Forest, Mission Viejo, Corona del Mar, San Clemente, Laguna Beach, Dana Point, San Juan Capistrano, Rancho Santa Margarita, and parts of Newport Beach and Costa Mesa)	April 18, 1998	split of 714
950	not assignable as an area code		Conflicts with the original use of exchange number 950, which was originally used to access competing interexchange carriers. A subscriber would call 950-XXXX to reach a specific carrier, then dial the long-distance destination number. This feature group 'B' has been rendered obsolete by 1010xxx "dial-around" feature group 'D', but the exchange remains reserved in each individual area code.
951	California (western Riverside County, including Riverside, Corona, California, Lake Elsinore, Mira Loma, Moreno Valley, Sun City, Temecula, Winchester, Lakeview, etc.)	July 17, 2004	split of 909
952	Minnesota (Bloomington, Eden Prairie, Edina, Minnetonka, Chaska, and the southwest suburban Minneapolis area)	February 27, 2000	created by three-way split of 612 (along with 763)
953	not in use; available for geographic assignment
954	Florida (all of Broward County: Fort Lauderdale, Hollywood, Coral Springs, etc.)	September 11, 1995	split of 305 2002: overlaid by 754
955	not in use; available for non-geographic assignment		easily recognizable code (ERC)
956	Texas (Laredo, Harlingen, Brownsville, McAllen, and southmost Texas)	July 7, 1997	split of 210
957–958	not in use; available for geographic assignment
959	Northern and eastern Connecticut (Hartford, Bristol, Norwich, and northern and eastern Connecticut)	August 30, 2014	overlaid on 860
960–969	not in use; reserved in case a block of consecutive numbers is ever needed		966 is an easily recognizable code (ERC)
970	Colorado (Grand Junction, Aspen, Durango, Estes Park, Fort Collins, Frisco, Glenwood Springs, Greeley, Purgatory, Steamboat Springs, Telluride, Vail, Rocky Mountain National Park, Dinosaur National Monument, and most of north-central, south-central, and western Colorado)	April 2, 1995	split of 303
971	Oregon (Portland, Salem, Hillsboro, Beaverton, and most of northwestern Oregon)	October 1, 2000	2000: partially overlaid on 503; in 2008, Clatsop County and Tillamook County, originally excluded from the overlay, were added to it
972	Texas (Dallas metropolitan area)	September 14, 1996	split of 214 1999: 214 and 972 were merged and overlaid with 469 2021: overlaid by 945
973	New Jersey (Newark, Paterson, and most of northeastern New Jersey)	June 1, 1997	split of 201 2001: overlaid by 862
974	not in use; available for geographic assignment
975	Missouri (Kansas City, St Joseph, Independence, Harrisonville, and parts of west-central Missouri)	October 13, 2023	overlaid on 816
976	not in use; available for geographic assignment		conflicts with the premium rate services exchange
977	not in use; available for non-geographic assignment		easily recognizable code (ERC)
978	Massachusetts (Ashby, Barre, Boxborough, Carlisle, Groveland, Rowley, Wendell, Wenham, and northeastern Massachusetts)	September 1, 1997	split of 508 2001: overlaid by 351
979	Texas (Wharton, Bryan, Bay City, College Station, Lake Jackson, La Grange, and southeastern Texas)	February 19, 2000	split of 409
980	North Carolina (Charlotte, Concord, Gastonia, Salisbury, and much of south-central North Carolina)	February 10, 2001	overlaid on 704
981–982	not in use; available for geographic assignment
983	Denver, Colorado	June 17, 2022	overlaid on 303/720
984	North Carolina (the Research Triangle, including Raleigh, the state capital city; Durham, Cary, and Chapel Hill; and Goldsboro and other parts of north-central North Carolina)	April 30, 2012	overlaid on 919
985	Louisiana (Houma, Slidell, and southeastern Louisiana excluding New Orleans)	February 12, 2001	split of 504
986	Idaho	September 5, 2017	overlaid on 208
987	not in use; available for geographic assignment
988	an N11 short code for the Suicide & Crisis Lifeline;^[23] not assignable as an area code	June 16, 2022	Created conflicts in area code regions that allowed seven-digit dialling and had been using numbers beginning in 988; a total of 82 area codes switched to ten-digit dialling as a result.^[24]
989	Michigan (Alpena, Mt. Pleasant, Bay City, Saginaw, Midland, Owosso, and a part of central Michigan)	April 7, 2001	split of 517
990–999	not in use; reserved for potential North American Numbering Plan expansion

Area codes by country, state, province, and regions

Future area codes are in italic type face.

United States

State	Codes
Alabama (list)	205, 251, 256, 334, 483, 659, 938
Alaska (list)	907
Arizona (list)	480, 520, 602, 623, 928
Arkansas (list)	327, 479, 501, 870
California (list)	209, 213, 279, 310, 323, 341, 350, 357, 369, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 738, 747, 760, 805, 818, 820, 831, 837, 840, 858, 909, 916, 925, 949, 951
Colorado (list)	303, 719, 720, 748, 970, 983
Connecticut (list)	203, 475, 860, 959
Delaware (list)	302
District of Columbia (list)	202, 771
Florida (list)	239, 305, 321, 324, 352, 386, 407, 448, 561, 645, 656, 689, 727, 728, 754, 772, 786, 813, 850, 863, 904, 941, 954
Georgia (list)	229, 404, 470, 478, 678, 706, 762, 770, 912, 943
Hawaii (list)	808
Idaho (list)	208, 986
Illinois (list)	217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 861, 872
Indiana (list)	219, 260, 317, 463, 574, 765, 812, 930
Iowa (list)	319, 515, 563, 641, 712
Kansas (list)	316, 620, 785, 913
Kentucky (list)	270, 364, 502, 606, 859
Louisiana (list)	225, 318, 337, 457, 504, 985
Maine (list)	207
Maryland (list)	227, 240, 301, 410, 443, 667
Massachusetts (list)	339, 351, 413, 508, 617, 774, 781, 857, 978
Michigan (list)	231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989
Minnesota (list)	218, 320, 507, 612, 651, 763, 924, 952
Mississippi (list)	228, 471, 601, 662, 769
Missouri (list)	235, 314, 417, 557, 573, 636, 660, 816, 975
Montana (list)	406
Nebraska (list)	308, 402, 531
Nevada (list)	702, 725, 775
New Hampshire (list)	603
New Jersey (list)	201, 551, 609, 640, 732, 848, 856, 862, 908, 973
New Mexico (list)	505, 575
New York (list)	212, 315, 329, 332, 347, 363, 516, 518, 585, 607, 624, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929, 934
North Carolina (list)	252, 336, 472, 704, 743, 828, 910, 919, 980, 984
North Dakota (list)	701
Ohio (list)	216, 220, 234, 283, 326, 330, 380, 419, 436, 440, 513, 567, 614, 740, 937
Oklahoma (list)	405, 539, 572, 580, 918
Oregon (list)	458, 503, 541, 971
Pennsylvania (list)	215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878
Rhode Island (list)	401
South Carolina (list)	803, 821, 839, 843, 854, 864
South Dakota (list)	605
Tennessee (list)	423, 615, 629, 729, 731, 865, 901, 931
Texas (list)	210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 621, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 945, 956, 972, 979
Utah (list)	385, 435, 801
Vermont (list)	802
Virginia (list)	276, 434, 540, 571, 686, 703, 757, 804, 826, 948
Washington (list)	206, 253, 360, 425, 509, 564
West Virginia (list)	304, 681
Wisconsin (list)	262, 274, 353, 414, 534, 608, 715, 920
Wyoming (list)	307

Canada

Province or territory	Codes
Alberta	368, 403, 568, 587, 780, 825
British Columbia	236, 250, 257, 604, 672, 778
Manitoba	204, 431, 584
New Brunswick	428, 506
Newfoundland and Labrador	709, 879
Northwest Territories	867
Nova Scotia	782, 851, 902
Nunavut	867
Ontario	226, 249, 289, 343, 365, 382, 387, 416, 437, 460, 519, 537, 548, 613, 647, 683, 705, 742, 753, 807, 905, 942
Prince Edward Island	782, 902
Quebec	263, 354, 367, 418, 438, 450, 468, 514, 579, 581, 819, 873
Saskatchewan	306, 474, 639
Yukon	867

Caribbean and Atlantic islands

Nation or territory	Codes
Anguilla	264
Antigua and Barbuda	268
The Bahamas	242
Barbados	246
Bermuda	441
British Virgin Islands	284
Cayman Islands	345
Dominica	767
Dominican Republic	809, 829, 849
Grenada	473
Jamaica	658, 876
Montserrat	664
Puerto Rico	787, 939
Saint Kitts and Nevis	869
Saint Lucia	758
Saint Vincent and the Grenadines	784
Sint Maarten	721
Trinidad and Tobago	868
Turks and Caicos Islands	649
U.S. Virgin Islands	340

U.S. Pacific territories

Territory	Codes
American Samoa	684
Guam	671
Northern Mariana Islands	670
Midway Atoll, Wake Island	808 (also used for Hawaii)

Non-geographic area codes

Use	Codes
Canada special services	600, 622, 633, 644, 655, 677, 688
Interexchange carrier-specific services	700
Personal communications services	500, 521, 522, 523, 524, 525, 526, 527, 528, 529, 532, 533, 535, 538, 542, 543, 544, 545, 546, 547, 549, 550, 552, 553, 554, 556, 566, 558, 569, 577, 578, 588, 589
Premium call services	900
Toll-free	800, 822, 833, 844, 855, 866, 877, 880, 881, 882, 883, 884, 885, 886, 887, 888, 889
US government	710

Assignment actions by year

Year^{[# 1]}	Area codes	Total assigned
1947	201, 202, 203, 204, 205, 206, 207, 208, 212, 213, 214, 215, 216, 217, 218, 301, 302, 303, 304, 305, 306, 307, 312, 313, 314, 315, 316, 317, 319, 401, 402, 403, 404, 405, 406, 412, 413, 414, 415, 416, 418, 419, 501, 502, 503, 504, 505, 512, 513, 514, 515, 517, 518, 601, 602, 603, 604, 605, 612, 613, 614, 616, 617, 618, 701, 702, 703, 704, 712, 713, 715, 716, 717, 801, 802, 803, 812, 814, 815, 816, 901, 902, 913, 914, 915, 916	86
1948	219	87
1950	417	88
1951	516, 714	90
1953	519, 813, 817, 918	94
1954	308, 507, 606, 607, 615, 912, 919	101^{[# 2]}
1955	506, 608	103
1956	318, 509, 609, 705, 805, 819	109^{[# 3]}
1957	209, 309, 806, 808, 907	114
1958	809	115
1959	408, 707	117
1961	906	118
1962	709, 807 510, 610 (Teletypewriter Exchange Service)	122
1963	903 (Tijuana-Mexicali; Mexico zone 6)	123
1965	904	124
1966	800	125
1967	710, 810, 910 (Teletypewriter Exchange Service)	128^{[# 4]}
1970	706 (Northwest Mexico (zone 6)) 905 (Mexico City; Zone 5)	130
1971	900	131
1973	804	132
1980	Withdrawn: 903 (replaced by expanding 706 in Northwest Mexico)	131
1981	Withdrawn: 510, 710, 810, 910 (TWX service)	127
1982	619	128
1983	409, 700, 710	131
1984	718, 818	133
1988	407, 508, 719	136
1989	708	137
1990	903, 908	139
1991	310, 410, 510 Withdrawn: 706 and 905 (Mexico)	140
1992	210, 706, 909, 917	144
1993	456, 810, 905, 910 600 Withdrawn: area code 610 (TWX service in Canada)	148
1994	500, 610	150
1995	334, 352, 360, 423, 441, 520, 540, 541, 770, 860, 864, 941, 954, 970	164
1996	242, 246, 250, 268, 281, 320, 330, 345, 561, 573, 630, 664, 757, 758, 773, 787, 847, 869, 888, 937, 972	185
1997	228, 240, 248, 253, 254, 264, 267, 284, 336, 340, 425, 435, 440, 443, 473, 530, 562, 580, 626, 649, 650, 660, 670, 671, 732, 734, 740, 760, 765, 767, 781, 785, 830, 850, 867, 868, 870, 876, 920, 931, 940, 956, 973, 978	229
1998	225, 252, 256, 323, 450, 559, 570, 651, 678, 720, 724, 727, 775, 784, 786, 828, 831, 843, 877, 925, 949	250
1999	231, 262, 270, 321, 337, 347, 361, 469, 480, 484, 623, 631, 636, 646, 661, 662, 780, 832, 856, 858, 863, 865	272
2000	229, 234, 478, 571, 641, 682, 763, 845, 859, 866, 936, 952, 971, 979, 989	287
2001	251, 276, 289, 339, 351, 386, 434, 551, 563, 585, 586, 620, 647, 731, 754, 774, 778, 848, 857, 862, 878, 928, 939, 980, 985	312
2002	224, 260, 269, 479, 567, 574, 772, 947	320
2003	239, 325, 430, 432	324
2004	684, 951	326
2005	769, 829	328
2006	226, 424, 438	331
2007	331, 575, 762, 779	335
2008	581, 587, 657	338
2009	385, 442, 475, 533, 681, 747, 872	345
2010	343, 458, 470, 534, 544, 579, 849, 855, 938	354
2011	249, 531, 539, 721, 929	359
2012	431, 566, 667, 669, 873, 984	365
2013	236, 272, 365, 437, 639, 737, 844	372
2014	346, 364, 577, 725, 782, 930, 959	378
2015	220, 588, 622, 628, 629, 854	384
2016	380, 463, 522, 548, 743, 825, 934	391
2017	223, 332, 521, 564, 680, 726, 833, 838, 986 Withdrawn: 456	399
2018	279, 367, 445, 523, 640, 820	405
2019	341, 524, 658, 659, 672, 689	411
2020	326, 525, 839	414
2021	447, 448, 474, 526, 527, 572, 582, 742, 771, 840, 945	425
2022	263, 350, 354, 368, 464, 468, 472, 528, 529, 557, 584, 656, 683, 753, 826, 835, 943, 948, 983	444
2023	227, 274, 283, 329, 353, 363, 369, 382, 428, 624, 633, 645, 728, 730, 861, 975	461
2024^{[# 5]}	235, 324, 327, 436, 686, 738, 821, 879, 924, 532
2025^{[# 5]}	257, 357, 457, 621, 679, 729, 748, 837, 942
2026^{[# 5]}	471, 483

^ The year may designate either the time of assignment or the in-service date. In-service dates are often difficult to ascertain for the early codes before they gained public recognition with gradual implementation of Direct Distance Dialing in the 1950 and 1960s. Starting with the late 1980s, assignment and in-service data was published timely in Planning Letters by the NANPA, fully accessible on their website.
^ Notes on Nationwide Dialing. American Telephone and Telegraph Company. 1955. p. II-3.
^ Notes on Distance Dialing. American Telephone and Telegraph Company. September 1956. p. II-3. The publication states that by 9/1956 109 codes had been assigned.
^ Notes on Distance Dialing. American Telephone and Telegraph Company. 1968. p. II-3.; by May 1967, all five TWX codes were reported as in service. 128 NPAs were in use, and NPA 950 was reserved. But uncertainty exists about the year between 1963 and 1967 in which these codes were actually installed.
^ ^a ^b ^c Projected future activation date

Summary table

Legend
Purpose
	Assigned as geographic NPA in the United States
	Assigned as geographic NPA in Canada
	Assigned as geographic NPA in Caribbean, Atlantic, and Pacific islands
	Assigned to non-geographic use (personal communications, special services, toll-free, carrier-specific, US government, easily recognizable codes)

	Not assignable as an area code (eight N11 codes, directory assistance, carrier access, or crisis assistance)

	Available for geographic assignment
	Available for non-geographic assignment (personal communications, toll-free, and other uses)
	Two contiguous blocks reserved for unanticipated purposes (370–379 and 960–969)

	Reserved for North American Numbering Plan expansion (middle digit 9)

NANP prefixes^[25]
200	201	202	203	204	205	206	207	208	209
210	211	212	213	214	215	216	217	218	219
220	221	222	223	224	225	226	227	228	229
230	231	232	233	234	235	236	237	238	239
240	241	242	243	244	245	246	247	248	249
250	251	252	253	254	255	256	257	258	259
260	261	262	263	264	265	266	267	268	269
270	271	272	273	274	275	276	277	278	279
280	281	282	283	284	285	286	287	288	289
290	291	292	293	294	295	296	297	298	299
300	301	302	303	304	305	306	307	308	309
310	311	312	313	314	315	316	317	318	319
320	321	322	323	324	325	326	327	328	329
330	331	332	333	334	335	336	337	338	339
340	341	342	343	344	345	346	347	348	349
350	351	352	353	354	355	356	357	358	359
360	361	362	363	364	365	366	367	368	369
370	371	372	373	374	375	376	377	378	379
380	381	382	383	384	385	386	387	388	389
390	391	392	393	394	395	396	397	398	399
400	401	402	403	404	405	406	407	408	409
410	411	412	413	414	415	416	417	418	419
420	421	422	423	424	425	426	427	428	429
430	431	432	433	434	435	436	437	438	439
440	441	442	443	444	445	446	447	448	449
450	451	452	453	454	455	456	457	458	459
460	461	462	463	464	465	466	467	468	469
470	471	472	473	474	475	476	477	478	479
480	481	482	483	484	485	486	487	488	489
490	491	492	493	494	495	496	497	498	499
500	501	502	503	504	505	506	507	508	509
510	511	512	513	514	515	516	517	518	519
520	521	522	523	524	525	526	527	528	529
530	531	532	533	534	535	536	537	538	539
540	541	542	543	544	545	546	547	548	549
550	551	552	553	554	555	556	557	558	559
560	561	562	563	564	565	566	567	568	569
570	571	572	573	574	575	576	577	578	579
580	581	582	583	584	585	586	587	588	589
590	591	592	593	594	595	596	597	598	599
600	601	602	603	604	605	606	607	608	609
610	611	612	613	614	615	616	617	618	619
620	621	622	623	624	625	626	627	628	629
630	631	632	633	634	635	636	637	638	639
640	641	642	643	644	645	646	647	648	649
650	651	652	653	654	655	656	657	658	659
660	661	662	663	664	665	666	667	668	669
670	671	672	673	674	675	676	677	678	679
680	681	682	683	684	685	686	687	688	689
690	691	692	693	694	695	696	697	698	699
700	701	702	703	704	705	706	707	708	709
710	711	712	713	714	715	716	717	718	719
720	721	722	723	724	725	726	727	728	729
730	731	732	733	734	735	736	737	738	739
740	741	742	743	744	745	746	747	748	749
750	751	752	753	754	755	756	757	758	759
760	761	762	763	764	765	766	767	768	769
770	771	772	773	774	775	776	777	778	779
780	781	782	783	784	785	786	787	788	789
790	791	792	793	794	795	796	797	798	799
800	801	802	803	804	805	806	807	808	809
810	811	812	813	814	815	816	817	818	819
820	821	822	823	824	825	826	827	828	829
830	831	832	833	834	835	836	837	838	839
840	841	842	843	844	845	846	847	848	849
850	851	852	853	854	855	856	857	858	859
860	861	862	863	864	865	866	867	868	869
870	871	872	873	874	875	876	877	878	879
880	881	882	883	884	885	886	887	888	889
890	891	892	893	894	895	896	897	898	899
900	901	902	903	904	905	906	907	908	909
910	911	912	913	914	915	916	917	918	919
920	921	922	923	924	925	926	927	928	929
930	931	932	933	934	935	936	937	938	939
940	941	942	943	944	945	946	947	948	949
950	951	952	953	954	955	956	957	958	959
960	961	962	963	964	965	966	967	968	969
970	971	972	973	974	975	976	977	978	979
980	981	982	983	984	985	986	987	988	989
990	991	992	993	994	995	996	997	998	999

References

^ AT&T (1955) Notes on Distance Dialing
^ "Telecom Decision CRTC 2011-451". Canadian Radio-television and Telecommunications Commission. 28 July 2011. Retrieved 29 July 2011.
^ ^a ^b ^c ^d ^e ^f ^g ^h https://www.nationalnanpa.com/enas/npasOverLast10YearsReport.do ^{[bare URL]}
^ ^a ^b "639 to be Sask.'s 2nd area code". CBC News. 14 June 2011.
^ ^a ^b "CRTC approves new 474 area code for Saskatchewan | CTV News". 23 July 2018.
^ AT&T, Telegraph to Telephone - A History from Early Invention to 1950s (movie), YouTube, retrieved 17 July 2016.
^ "Telecom Decision CRTC 2010-213". Canadian Radio-television and Telecommunications Commission. 13 April 2010. Retrieved 23 August 2010.
^ ^a ^b ^c "Telecom Decision CRTC 2020-362". Canadian Radio-television and Telecommunications Commission. 28 October 2020. Archived from the original on 19 September 2022. Retrieved 27 October 2022.
^ "New 367 area code coming to eastern Quebec in November". Montreal Gazette. 23 May 2018. Retrieved 24 May 2018.
^ "New area codes in Canada". Telecommunications Alliance. Retrieved 24 May 2018.
^ ^a ^b "Planning Letter 81" (PDF). NANPA/Bellcore. 1991-08-15. Retrieved 2023-08-08.
^ ^a ^b ^c "Oldsmar, Florida Area Code". AreaCodeHelp.com. Archived from the original on 29 October 2022. Retrieved 29 October 2022.
^ ^a ^b "Tampa-Hillsborough to get a new area code. Say hello to the 656". Tampa Bay Times. Retrieved 2020-05-08.
^ "NPA 205 and 659 All-Services Overlay (Alabama)" (PDF). NANPA. 8 October 2018. Retrieved 30 October 2022.
^ "B.C. is getting a new area code next year". CBC News. 14 February 2018. Retrieved 19 February 2018.
^ "PL-423: Introduction of NPA 721 (Sint Maarten)". North American Numbering Plan Administration. 2011-07-27. Archived from the original (PDF) on 2019-01-08. Retrieved 2011-09-01.
^ "New area code 825 in Alberta". Telus. TELUS Communications Company. Archived from the original on 2014-11-21. Retrieved 7 July 2023.
^ "Implementation of the 833 NPA for Toll-Free Services" (PDF). NANPA. 26 April 2017.
^ "NPA 839 to overlay NPA 803 (South Carolina)" (PDF). NANPA. 18 September 2018. start of mandatory 10-digit dialing April 25, 2020
^ Wong, Wailin (2009-08-10). "Chicago's newest area code: 872". Chicago Tribune. Archived from the original on 2009-08-13.
^ "Planning Letter 331: Recovery of NPA Codes 880, 881, 882 (Paid Toll-Free Service) Scheduled for 1 April 2004" (PDF). North American Numbering Plan Administration. 2003-06-02. Archived from the original (PDF) on 2008-07-05. Retrieved 2008-08-28.
^ "Relief Implementation Plan" (DOCX). Canadian Numbering Administration Consortium.
^ Dwyer, Colin (December 13, 2019). "FCC Approves Plan For 3-Digit Suicide Prevention Number Similar To 911". NPR. Archived from the original on January 5, 2020. Retrieved October 18, 2020.
^ "NANPA : Transition to 10-digit dialing for 988". North American Numbering Plan Administrator. Retrieved 1 February 2024.
^ NPA reports, North American Numbering Plan Administrator, 2019-06-22.

[25] The year may designate either the time of assignment or the in-service date. In-service dates are often difficult to ascertain for the early codes before they gained public recognition with gradual implementation of Direct Distance Dialing in the 1950 and 1960s. Starting with the late 1980s, assignment and in-service data was published timely in Planning Letters by the NANPA, fully accessible on their website.

[26] Notes on Nationwide Dialing. American Telephone and Telegraph Company. 1955. p. II-3.

[notes56-27] Notes on Distance Dialing. American Telephone and Telegraph Company. September 1956. p. II-3. The publication states that by 9/1956 109 codes had been assigned.

[att1968-28] Notes on Distance Dialing. American Telephone and Telegraph Company. 1968. p. II-3.; by May 1967, all five TWX codes were reported as in service. 128 NPAs were in use, and NPA 950 was reserved. But uncertainty exists about the year between 1963 and 1967 in which these codes were actually installed.

[projected-29] Projected future activation date

[1] AT&T (1955) Notes on Distance Dialing

[2] "Telecom Decision CRTC 2011-451". Canadian Radio-television and Telecommunications Commission. 28 July 2011. Retrieved 29 July 2011.

[:0-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h https://www.nationalnanpa.com/enas/npasOverLast10YearsReport.do ^{[bare URL]}

[cbc_2011-06-14-4] "639 to be Sask.'s 2nd area code". CBC News. 14 June 2011.

[ctvnews_2018-07-23-5] "CRTC approves new 474 area code for Saskatchewan | CTV News". 23 July 2018.

[6] AT&T, Telegraph to Telephone - A History from Early Invention to 1950s (movie), YouTube, retrieved 17 July 2016.

[7] "Telecom Decision CRTC 2010-213". Canadian Radio-television and Telecommunications Commission. 13 April 2010. Retrieved 23 August 2010.

[crtc_2020-10-28-8] "Telecom Decision CRTC 2020-362". Canadian Radio-television and Telecommunications Commission. 28 October 2020. Archived from the original on 19 September 2022. Retrieved 27 October 2022.

[9] "New 367 area code coming to eastern Quebec in November". Montreal Gazette. 23 May 2018. Retrieved 24 May 2018.

[10] "New area codes in Canada". Telecommunications Alliance. Retrieved 24 May 2018.

[pl81-11] "Planning Letter 81" (PDF). NANPA/Bellcore. 1991-08-15. Retrieved 2023-08-08.

[oldsmar_area_code-12] "Oldsmar, Florida Area Code". AreaCodeHelp.com. Archived from the original on 29 October 2022. Retrieved 29 October 2022.

[tampabay_2020-05-08-13] "Tampa-Hillsborough to get a new area code. Say hello to the 656". Tampa Bay Times. Retrieved 2020-05-08.

[14] "NPA 205 and 659 All-Services Overlay (Alabama)" (PDF). NANPA. 8 October 2018. Retrieved 30 October 2022.

[15] "B.C. is getting a new area code next year". CBC News. 14 February 2018. Retrieved 19 February 2018.

[16] "PL-423: Introduction of NPA 721 (Sint Maarten)". North American Numbering Plan Administration. 2011-07-27. Archived from the original (PDF) on 2019-01-08. Retrieved 2011-09-01.

[area_code_825-17] "New area code 825 in Alberta". Telus. TELUS Communications Company. Archived from the original on 2014-11-21. Retrieved 7 July 2023.

[18] "Implementation of the 833 NPA for Toll-Free Services" (PDF). NANPA. 26 April 2017.

[19] "NPA 839 to overlay NPA 803 (South Carolina)" (PDF). NANPA. 18 September 2018. start of mandatory 10-digit dialing April 25, 2020

[20] Wong, Wailin (2009-08-10). "Chicago's newest area code: 872". Chicago Tribune. Archived from the original on 2009-08-13.

[21] "Planning Letter 331: Recovery of NPA Codes 880, 881, 882 (Paid Toll-Free Service) Scheduled for 1 April 2004" (PDF). North American Numbering Plan Administration. 2003-06-02. Archived from the original (PDF) on 2008-07-05. Retrieved 2008-08-28.

[22] "Relief Implementation Plan" (DOCX). Canadian Numbering Administration Consortium.

[23] Dwyer, Colin (December 13, 2019). "FCC Approves Plan For 3-Digit Suicide Prevention Number Similar To 911". NPR. Archived from the original on January 5, 2020. Retrieved October 18, 2020.

[24] "NANPA : Transition to 10-digit dialing for 988". North American Numbering Plan Administrator. Retrieved 1 February 2024.

[30] NPA reports, North American Numbering Plan Administrator, 2019-06-22.

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