RIR (Regional Internet Registry)
Definition
One of five organisations that allocate IP address blocks by region: ARIN (Americas), RIPE NCC (Europe, Middle East, Central Asia), APNIC (Asia-Pacific), LACNIC (Latin America and Caribbean), and AFRINIC (Africa). RIR databases are the authoritative source for address-to-organisation mapping queries via WHOIS or RDAP.
Related terms
- Autonomous System (AS)
- A collection of IP networks operated under a single routing policy and identified by a unique Autonomous System Number (ASN). ISPs, large...
- BGP (Border Gateway Protocol)
- The routing protocol that autonomous systems use to advertise the IP address ranges they control to one another. BGP is the mechanism...
- CIDR (Classless Inter-Domain Routing)
- A compact notation for IP address ranges that appends a prefix length to the address, such as 192.168.1.0/24. The prefix length states...
- IPv6 Privacy Extensions (RFC 8981)
- A mechanism defined in RFC 8981 (formerly RFC 4941) by which IPv6 hosts generate temporary randomised addresses for outbound connections, rotating them...
- NAT (Network Address Translation)
- A mechanism by which a router replaces private source IP addresses with a single public IP address before forwarding packets to the...
Explained in
- IP Addressing and Routing Fundamentals for InvestigatorsOne of five organisations that allocate IP address blocks by region: ARIN (Americas), RIPE NCC (Europe, Middle East, Central Asia), APNIC (Asia-Pacific), LACNI...