A regional Internet registry (RIR) is an organization which is responsible for registering Internet numbers in a special part of the world.

There are 5 active RIRs in the world:

• American Registry for Internet Numbers (ARIN) ^[1] for North America
• RIPE Network Coordination Centre (RIPE NCC) ^[2] for Europe, the Middle East and Central Asia
• Asia-Pacific Network Information Centre (APNIC) ^[3] for Asia and the Pacific region
• Latin American and Caribbean Internet Address Registry (LACNIC) ^[4] for Latin America and the Caribbean region
• African Network Information Centre (AfriNIC) ^[5] for Africa

1. ↑ American Registry for Internet Numbers
2. ↑ RIPE Network Coordination Centre
3. ↑ Asia-Pacific Network Information Centre
4. ↑ Latin American and Caribbean Internet Address Registry
5. ↑ African Network Information Centre

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