RIR
Regional Internet Registry
- AFRINIC (Africa)
- African Network Information Center
- ARIN (North America and some Caribbean)
- American Registry for Internet Numbers
- APNIC (Asia Pacific)
- Asia Pacific Network Information Center
- LACNIC (Latin America/Caribbean)
- Latin America and Caribbean Network Information Center
- RIPE NCC (Europe, Russia, northwestern Asia) (Ripe Reseaux)
- Reseaux IP Europeens Network Coordination Center