Special-Purpose IP Address Registries
This specification has been revised 5 times since RFC 3330 (2002). Each document below formally obsoleted the one before it; the versions still in force are listed first.
Revision timeline
Current version — implement against this
Superseded versions — historical reference only
- RFC 3330Special-Use IPv4 AddressesObsoletedOctober 2002informationalreplaced by RFC5735
- RFC 4773Administration of the IANA Special Purpose IPv6 Address BlockObsoletedDecember 2006informationalreplaced by RFC6890
- RFC 5156Special-Use IPv6 AddressesObsoletedApril 2008informationalreplaced by RFC6890
- RFC 5735Special Use IPv4 AddressesObsoletedJanuary 2010best current practicereplaced by RFC6890
- RFC 5736IANA IPv4 Special Purpose Address RegistryObsoletedJanuary 2010informationalreplaced by RFC6890
This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 6890 (April 2013).