The station first signed on in 1975 as WRCC.[7] Originally it was powered with 3,000 watts as a Class A station. It has since boosted its power to 100,000 watts as a Class C station. WRCC carried a classical music format.
In 1990, its call sign was changed to WAKS. The frequency moved one notch to 103.7 FM and it began running a classic rock format. This lasted until 1993, when the station returned back to its 103.9 frequency, changed its call sign to WXKB, and it flipped to Top 40 hits. This was shortly after competitor 96.9 WINK-FM dropped Top 40 for hot adult contemporary during the same year.
HD Radio
On July 9, 2021, WXKB-HD2 began broadcasting a classic hip hop format, branded as "96.5/101.5 The Bounce." It is simulcast on FM translators W243BM at 96.5 FM, W268AH at 101.5 FM and W286AK at 105.1 FM.[8]
On September 22, 2023, WXKB-HD2 flipped to an all-podcast format, as part of Beasley's "Podcast Radio US" network.[9]
WXKB's HD3 subchannel rebroadcasts the sports radio format on co-owned WBCN 770 AM.