IANA IPv4 Special Purpose Address Registry Created 2009-08-19 Last Updated 2011-08-09 This registry is also available in plain text. Registry included below * IANA IPv4 Special Purpose Address Registry IANA IPv4 Special Purpose Address Registry Registration Procedures IETF Review Reference [RFC5736] Note The IETF has reserved the address block of 192.0.0.0/24 for use for special purposes relating to protocol assignments. This registry contains the current assignments made by the IETF from this address block. Address prefixes listed in the Special Purpose Address Registry are not guaranteed routability in any particular local or global context. Prefix Assignment Date Designated Termination Date Purpose Contact Details Routing Scope Reference 192.0.0.0/29 DS-lite 2011-06-10 never For IPv4 packets generated by B4 and AFTR. Not Routed [RFC6333]