Private IP addresses
| Class | Start Address | End Address | CIDR |
| A | 10.0.0.0 | 10.255.255.255 | 10.0.0.0/8 |
| B | 172.16.0.0 | 172.31.255.255 | 172.16.0.0/12 |
| C | 192.168.0.0 | 192.168.255.255 | 192.168.0.0/16 |
Special addresses
| Description | Start Address | End Address | CIDR |
| Loopback | 127.0.0.0 | 127.255.255.255 | 127.0.0.0/8 |
| Link-local | 169.254.0.0 | 169.254.255.255 | 169.254.0.0/16 |
| Multicast | 224.0.0.0 | 239.255.255.255 | 224.0.0.0/4 |
| Future use / Research | 240.0.0.0 | 255.255.255.255 | 240.0.0.0/4 |
Public Addresses
Classless Inter-Domain Routing