RFC 796 [RFC796] specifies formats for "classful" IPv4 addresses. It also specifies mappings for some existing networks at the time it was published between their "local" network representations and IPv4 equivalents. However, "classful" addresses have been largely superseded by CIDR [RFC4632]. Furthermore, the vast majority of these addresses have either been reassigned to other organizations, or are considered part of private address space [RFC1918]. Therefore, RFC 796 is reclassified to Historic status.