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The below table contains all the special-purpose IANA registered address blocks.
| Address Block | Name |
|---|---|
| 0.0.0.0/8 | This host on this network |
| 10.0.0.0/8 | Private-Use |
| 100.64.0.0/10 | Shared Address Space |
| 127.0.0.0/8 | Loopback |
| 169.254.0.0/16 | Link Local |
| 172.16.0.0/12 | Private-Use |
| 192.0.0.0/24 | IETF Protocol Assignments |
| 192.0.0.0/29 | IPv4 Service Continuity Prefix |
| 192.0.0.10/32 | Traversal Using Relays around NAT Anycast |
| 192.0.0.170/32 | NAT64/DNS64 Discovery |
| 192.0.0.171/32 | NAT64/DNS64 Discovery |
| 192.0.0.8/32 | IPv4 dummy address |
| 192.0.0.9/32 | Port Control Protocol Anycast |
| 192.0.2.0/24 | Documentation (TEST-NET-1) |
| 192.168.0.0/16 | Private-Use |
| 192.175.48.0/24 | Direct Delegation AS112 Service |
| 192.31.196.0/24 | AS112-v4 |
| 192.52.193.0/24 | AMT |
| 192.88.99.0/24 | Deprecated (6to4 Relay Anycast) |
| 198.18.0.0/15 | Benchmarking |
| 198.51.100.0/24 | Documentation (TEST-NET-2) |
| 203.0.113.0/24 | Documentation (TEST-NET-3) |
| 240.0.0.0/4 | Reserved |
| 255.255.255.255/32 | Limited Broadcast |
| Address Block | Name |
|---|---|
| 100::/64 | Discard-Only Address Block |
| 2001:10::/28 | Deprecated (previously ORCHID) |
| 2001:1::1/128 | Port Control Protocol Anycast |
| 2001:1::2/128 | Traversal Using Relays around NAT Anycast |
| 2001:20::/28 | ORCHIDv2 |
| 2001:2::/48 | Benchmarking |
| 2001:3::/32 | AMT |
| 2001:4:112::/48 | AS112-v6 |
| 2001:5::/32 | EID Space for LISP (Managed by RIPE NCC) |
| 2001::/32 | TEREDO |
| 2001:db8::/32 | Documentation |
| 2002::/16 | 6to4 |
| 2620:4f:8000::/48 | Direct Delegation AS112 Service |
| 64:ff9b:1::/48 | IPv4-IPv6 Translated Address |
| 64:ff9b::/96 | IPv4-IPv6 Translated Address |
| :: | Loopback Address |
| ::/128 | Unspecified Address |
| ::ffff:0:0/96 | IPv4-mapped Address |
| fc00::/7 | Unique-Local |
| fe80::/10 | Link-Local Unicast |