0.0.0.0/8
|
0.0.0.0–0.255.255.255
|
16777216
|
Software
|
Current network[3] (only valid as source address).
|
10.0.0.0/8
|
10.0.0.0–10.255.255.255
|
16777216
|
Private network
|
Used for local communications within a private network.[4]
|
100.64.0.0/10
|
100.64.0.0–100.127.255.255
|
4194304
|
Private network
|
Shared address space[5] 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
|
16777216
|
Host
|
Used for loopback addresses to the local host.[3]
|
169.254.0.0/16
|
169.254.0.0–169.254.255.255
|
65536
|
Subnet
|
Used for link-local addresses[6]
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
|
1048576
|
Private network
|
Used for local communications within a private network.[4]
|
192.0.0.0/24
|
192.0.0.0–192.0.0.255
|
256
|
Private network
|
IETF Protocol Assignments.[3]
|
192.0.2.0/24
|
192.0.2.0–192.0.2.255
|
256
|
Documentation
|
Assigned as TEST-NET-1, documentation and examples.[7]
|
192.88.99.0/24
|
192.88.99.0–192.88.99.255
|
256
|
Internet
|
Reserved.[8] Formerly used for IPv6 to IPv4 relay[9] (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.[4]
|
198.18.0.0/15
|
198.18.0.0–198.19.255.255
|
131072
|
Private network
|
Used for benchmark testing of inter-network communications between two separate subnets.[10]
|
198.51.100.0/24
|
198.51.100.0–198.51.100.255
|
256
|
Documentation
|
Assigned as TEST-NET-2, documentation and examples.[7]
|
203.0.113.0/24
|
203.0.113.0–203.0.113.255
|
256
|
Documentation
|
Assigned as TEST-NET-3, documentation and examples.[7]
|
224.0.0.0/4
|
224.0.0.0–239.255.255.255
|
268435456
|
Internet
|
In use for IP multicast.[11] (Former Class D network).
|
240.0.0.0/4
|
240.0.0.0–255.255.255.254
|
268435455
|
Internet
|
Reserved for future use.[12] (Former Class E network).
|
255.255.255.255/32
|
255.255.255.255
|
1
|
Subnet
|
Reserved for the "limited broadcast" destination address.[3][13] |