IP (Internet Protocol)
IP classes
| Class | Public IP range | Private IP range | Subnet mask | # of Networks | # of hosts per network |
|---|---|---|---|---|---|
| Class A | 1.0.0.0 to 127.0.0.0 | 10.0.0.0 to 10.255.255.255 | 255.0.0.0 | 126 | 16,777,214 |
| Class B | 128.0.0.0 to 191.255.0.0 | 172.16.0.0 to 172.31.255.255 | 255.255.0.0 | 16,382 | 65,534 |
| Class C | 192.0.0.0 to 223.255.255.0 | 192.168.0.0 to 192.168.255.255 | 255.255.255.0 | 2,097,150 | 254 |