Address Block Present Use Reference -------------------------------------------------------------------- 0.0.0.0/8 "This" Network RFC 1122, Section 3.2.1.3 10.0.0.0/8 Private-Use Networks RFC 1918 14.0.0.0/8 Public-Data Networks RFC 1700, page 181 100.64.0.0/10 Shared Address Space RFC 6598 127.0.0.0/8 Loopback RFC 1122, Section 3.2.1.3 169.254.0.0/16 Link Local RFC 3927 172.16.0.0/12 Private-Use Networks RFC 1918 192.0.0.0/24 IETF Protocol Assignments RFC 6890, Section 2.1 192.0.0.0/29 [1] DS-Lite RFC 6333 192.0.2.0/24 TEST-NET-1 RFC 5737 192.88.99.0/24 6to4 Relay Anycast RFC 3068 192.168.0.0/16 Private-Use Networks RFC 1918 198.18.0.0/15 Network Interconnect Device Benchmark Testing RFC 2544 198.51.100.0/24 TEST-NET-2 RFC 5737 203.0.113.0/24 TEST-NET-3 RFC 5737 224.0.0.0/4 Multicast RFC 3171 240.0.0.0/4 Reserved for Future Use RFC 1112, Section 4 255.255.255.255/32 Limited Broadcast RFC 0919, Section 7 RFC 0922, Section 7 ::1/128 Loopback Address RFC 4291 ::/128 Unspecified Address RFC 4291 64:ff9b::/96 IPv4-IPv6 Translat. RFC 6052 ::ffff:0:0/96 IPv4-mapped Address RFC 4291 100::/64 Discard-Only Address Block RFC 6666 2001::/23 IETF Protocol Assignments RFC 2928 2001::/32 TEREDO RFC 4380 2001:2::/48 Benchmarking RFC 5180 2001:db8::/32 Documentation RFC 3849 2001:10::/28 ORCHID RFC 4843 2002::/16 [2] 6to4 RFC 3056 fc00::/7 Unique-Local RFC 4193 fe80::/10 Linked-Scoped Unicast RFC 4291