IP Index (WIP)
This Document Outlines plenty of publicly recognized IPv4 and IPv6 Addresses
| Address Block | Address range | Number of Addresses | Scope | Description |
| 0.0.0.0/8 | 0.0.0.0-0.255.255.255 | 16,777,216 | Software | Current |
| 10.0.0.0/8 | 10.0.0.0–10.255.255.255 | 16,777,216 | Private network | Used for local communications within a private network. |
| 100.64.0.0/10 | 100.64.0.0–100.127.255.255 | 4,194,304 | Private network | Shared address space for communications between a service provider and its subscribers when using a carrier-grade NAT. |
| 127.0.0.0/8 | 127.0.0.0–127.255.255.255 | 16,777,216 | Host | Used for loopback addresses to the local host. |
| 169.254.0.0/16 | 169.254.0.0–169.254.255.255 | 65,536 | Subnet | Used for link-local addresses between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server. |
| 172.16.0.0/12 | 172.16.0.0–172.31.255.255 | 1,048,576 | Private network | Used for local communications within a private network. |
| 192.0.0.0/24 | 192.0.0.0–192.0.0.255 | 256 | Private network | IETF Protocol Assignments, DS-Lite (/29). |
| 192.0.2.0/24 | 192.0.2.0–192.0.2.255 | 256 | Documentation | Assigned as TEST-NET-1, documentation and examples. |
| 192.88.99.0/24 | 192.88.99.0–192.88.99.255 | 256 | Internet | Reserved. Formerly used for IPv6 to IPv4 relay (included IPv6 address block 2002::/16). |
| 192.168.0.0/16 | 192.168.0.0–192.168.255.255 | 65536 | Private network | Used for local communications within a private network. |
| 198.18.0.0/15 | 198.18.0.0–198.19.255.255 | 131,072 | Private network | Used for benchmark testing of inter-network communications between two separate subnets. |
| 198.51.100.0/24 | 198.51.100.0–198.51.100.255 | 256 | Documentation | Assigned as TEST-NET-2, documentation and examples. |
| 203.0.113.0/24 | 203.0.113.0–203.0.113.255 | 256 | Documentation | Assigned as TEST-NET-3, documentation and examples. |
| 224.0.0.0/4 | 224.0.0.0–239.255.255.255 | 268,435,456 | Internet | In use for IP multicast. (Former Class D network.) |
| 233.252.0.0/24 | 233.252.0.0-233.252.0.255 | 256 | Documentation | Assigned as MCAST-TEST-NET, documentation and examples. |
| 240.0.0.0/4 | 240.0.0.0–255.255.255.254 | 268,435,455 | Internet | Reserved for future use. (Former Class E network.) |
| 255.255.255.255/32 | 255.255.255.255 | 1 | Subnet | Reserved for the "limited broadcast" destination address. |
| Address Block | First address | Last Address | Number of addresses | Scope | Description |
| ::/128 | :: | :: | 1 | Software | Unspecified address |
| ::1/128 | ::1 | ::1 | 1 | host | Loopback address—a virtual interface that loops all traffic back to itself, the local host |
| ::ffff:0:0/96 | ::ffff:0.0.0.0 | ::ffff:255.255.255.255 | 232 | Software | IPv4-mapped addresses |
| ::ffff:0:0:0/96 | ::ffff:0:0.0.0.0 | ::ffff:0:255.255.255.255 | 232 |
Software | IPv4 translated addresses |
| 64:ff9b::/96 | 64:ff9b::0:0:0:0 | 64:ff9b::255.255.255.255 | 232 | Global Internet | IPv4/IPv6 translation |
| 64:ff9b:1::/48 | 64:ff9b:1:: | 64:ff9b:1:ffff:ffff:ffff:ffff:ffff | 2,80 with 248 for each IPv4 | Private internets | IPv4/IPv6 translation |
| 100::/64 | 100:: | 100::ffff:ffff:ffff:ffff | 264 | Routing | Discard prefix |
| 2001:0000::/32 | 2001:: | 2001::ffff:ffff:ffff:ffff:ffff:ffff | 296 | Global Internet | Teredo tunneling |
| 2001:20::/28 | 2001:20:: | 2001:2f:ffff:ffff:ffff:ffff:ffff:ffff | 2100 | Software | ORCHIDv2 |
2001:db8::/32 |
2001:db8:: |
2001:db8:ffff:ffff:ffff:ffff:ffff:ffff |
296 | Documentation | Addresses used in documentation and example source code |
| 2002::/16 |
2002:: |
2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
2112 | Global Internet | The 6to4 addressing scheme (deprecated) |
| fc00::/7 | fc00:: | fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff | 2121 | Private Internets | Unique local address |
| fe80::/64 from fe80::/10 | fe80:: | fe80::ffff:ffff:ffff:ffff | 264 | Link | Link-local address |
| ff00::/8 | ff00:: | ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff | 2120 | Global Internet | Multicast address |