| Binario | Decimal | [CIDR](https://es.wikipedia.org/wiki/CIDR "CIDR") | N.º hosts | Clase |
|---|
| 11111111.11111111.11111111.11111001 | 255.255.255.255 | /32 |
| 11111111.11111111.11111111.11111110 | 255.255.255.254 | /31 |
| 11111111.11111111.11111111.11111100 | 255.255.255.252 | /30 | 2 |
| 11111111.11111111.11111111.11111000 | 255.255.255.248 | /29 | 6 |
| 11111111.11111111.11111111.11110000 | 255.255.255.240 | /28 | 14 |
| 11111111.11111111.11111111.11100000 | 255.255.255.224 | /27 | 30 |
| 11111111.11111111.11111111.11000000 | 255.255.255.192 | /26 | 62 |
| 11111111.11111111.11111111.10000000 | 255.255.255.128 | /25 | 126 |
| 11111111.11111111.11111111.00000000 | 255.255.255.0 | /24 | 254 | **C** |
| 11111111.11111111.11111110.00000000 | 255.255.254.0 | /23 | 510 |
| 11111111.11111111.11111100.00000000 | 255.255.252.0 | /22 | 1022 |
| 11111111.11111111.11111000.00000000 | 255.255.248.0 | /21 | 2046 |
| 11111111.11111111.11110000.00000000 | 255.255.240.0 | /20 | 4094 |
| 11111111.11111111.11100000.00000000 | 255.255.224.0 | /19 | 8190 |
| 11111111.11111111.11000000.00000000 | 255.255.192.0 | /18 | 16382 |
| 11111111.11111111.10000000.00000000 | 255.255.128.0 | /17 | 32766 |
| 11111111.11111111.00000000.00000000 | 255.255.0.0 | /16 | 65534 | **B** |
| 11111111.11111110.00000000.00000000 | 255.254.0.0 | /15 | 131070 |
| 11111111.11111100.00000000.00000000 | 255.252.0.0 | /14 | 262142 |
| 11111111.11111000.00000000.00000000 | 255.248.0.0 | /13 | 524286 |
| 11111111.11110000.00000000.00000000 | 255.240.0.0 | /12 | 1048574 |
| 11111111.11100000.00000000.00000000 | 255.224.0.0 | /11 | 2097150 |
| 11111111.11000000.00000000.00000000 | 255.192.0.0 | /10 | 4194302 |
| 11111111.10000000.00000000.00000000 | 255.128.0.0 | /9 | 8388606 |
| 11111111.00000000.00000000.00000000 | 255.0.0.0 | /8 | 16777214 | **A** |
| 11111110.00000000.00000000.00000000 | 254.0.0.0 | /7 | 33554430 |
| 11111100.00000000.00000000.00000000 | 252.0.0.0 | /6 | 67108862 |
| 11111000.00000000.00000000.00000000 | 248.0.0.0 | /5 | 134217726 |
| 11110000.00000000.00000000.00000000 | 240.0.0.0 | /4 | 268435454 |
| 11100000.00000000.00000000.00000000 | 224.0.0.0 | /3 | 536870910 |
| 11000000.00000000.00000000.00000000 | 192.0.0.0 | /2 | 1073741822 |
| 10000000.00000000.00000000.00000000 | 128.0.0.0 | /1 | 2147483646 |
| 00000000.0000000.00000000.00000000 | 0. | /0 | 4294967294 |