| Class |
IP Range |
Binary IP Range |
| A |
255.0.0.0 |
11111111.00000000.00000000.00000000 |
| B |
255.255.0.0 |
11111111.11111111.00000000.00000000 |
| C |
255.255.255.0 |
11111111.11111111.11111111.00000000 |
Ones (1's) are network bits.
Zeros (0's) are node bits (assignable address bits).
|
|
| Class |
Valid Addresses |
| A |
16,777,216 (2^24) |
| B |
65,536 (2^16) |
| C |
256 (2^8) |
|
| Bits |
Subnet Mask |
Subnets |
Hosts |
| 8 |
255.0.0.0 |
1 |
16,777,216 |
| 16 |
255.255.0.0 |
256 |
65,534 |
| 24 |
255.255.255.0 |
65,536 |
254 |
| 25 |
255.255.255.128 |
131,072 |
126 |
| 26 |
255.255.255.192 |
262,144 |
62 |
| 27 |
255.255.255.224 |
524,288 |
30 |
| 28 |
255.255.255.240 |
1,048,576 |
14 |
| 29 |
255.255.255.248 |
2,097,152 |
6 |
| 30 |
255.255.255.252 |
4,194,304 |
2 |
|
| Decimal |
Binary |
Bits |
| .128 |
10000000 |
1 |
| .192 |
11000000 |
2 |
| .224 |
11100000 |
3 |
| .240 |
11110000 |
4 |
| .248 |
11111000 |
5 |
| .252 |
11111100 |
6 |
| .254 |
11111110 |
7 |
| .255 |
11111111 |
8 |
|