The table below shows the IP address classes. This could be handy for someone trying to remember possible IP ranges of a particular IP class. The first 8 bits of the IP address are used to determine the class.
| Class | Address Range | No. of Network | Hosts |
|---|---|---|---|
| A | 1-126.x.y.z | 126 | 16,777,214 |
| B | 128-191.x.y.z | 16,384 | 65,534 |
| C | 192-223.x.y.z | 2,097,152 | 254 |