| Class | Leading bits | Size of network number bit field | Size of rest bit field | Number of networks | Addresses per network | Start address | End address |
| Class A | 0 | 8 | 24 | 128 (27) | 16777216 (224) | 0.0.0.0 | 127.255.255.255 |
| Class B | 10 | 16 | 16 | 16384 (214) | 65536 (216) | 128.0.0.0 | 191.255.255.255 |
| Class C | 110 | 24 | 8 | 2097152 (221) | 256 (28) | 192.0.0.0 | 223.255.255.255 |
| Class D (multicast) | 1110 | not defined | not defined | not defined | not defined | 224.0.0.0 | 239.255.255.255 |
| Class E (reserved) | 1111 | not defined | not defined | not defined | not defined | 240.0.0.0 | 255.255.255.255 |
- general/addr_class.txt
- Last modified: 2019/10/31 08:55
- by 127.0.0.1
