Class A - For large networks
0 | <7 bits of the network address> | <24 bits of host address> |
Class B - For medium networks
1 | 0 | <14 bits of the network address> | <16 bits of host address> |
Class C - For small networks
1 | 1 | 0 | <21 bits of the network address> | <8 bits of host address> |