IANA IPv4 Address Space Allocation for Prefix 255/8
RESERVED - designated by the IETF (Internet Engineering Task Force) for specific non-global-unicast purposes as noted.
- Reserved for future use (formerly "Class E") [RFC1112].
- Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
- 255.255.255.255 is reserved for "limited broadcast" destination address [RFC919] and [RFC922].
- Complete registration details for 255.255.255.255/32 are found in [IANA registry iana-ipv4-special-registry].