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IANA IPv4 Address Space Allocation for Prefix 131/8


Administered by ARIN

Allocation Time




https://rdap.arin.net/registry, , http://rdap.arin.net/registry


LEGACY - allocated by the central Internet Registry (IR) prior to the Regional Internet Registries (RIRs). This address space is now administered by individual RIRs as noted, including maintenance of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally on a regional basis.