| Addresses | Netmask | Amount of a Class C | |
|---|---|---|---|
| /31 | 2 | 255.255.255.254 | 1/128 |
| /30 | 4 | 255.255.255.252 | 1/64 |
| /29 | 8 | 255.255.255.248 | 1/32 |
| /28 | 16 | 255.255.255.240 | 1/16 |
| /27 | 32 | 255.255.255.224 | 1/8 |
| /26 | 64 | 255.255.255.192 | 1/4 |
| /25 | 128 | 255.255.255.128 | 1/2 |
| /24 | 256 | 255.255.255.0 | 1 |
| /23 | 512 | 255.255.254.0 | 2 |
| /22 | 1024 | 255.255.252.0 | 4 |
| /21 | 2048 | 255.255.248.0 | 8 |
| /20 | 4096 | 255.255.240.0 | 16 |
| /19 | 8192 | 255.255.224.0 | 32 |
| /18 | 16384 | 255.255.192.0 | 64 |
| /17 | 32768 | 255.255.128.0 | 128 |
| /16 | 65536 | 255.255.0.0 | 256 |
| /15 | 131072 | 255.254.0.0 | 512 |
| /14 | 262144 | 255.252.0.0 | 1024 |
| /13 | 524288 | 255.248.0.0 | 2048 |
| /12 | 1048576 | 255.240.0.0 | 4096 |
| /11 | 2097152 | 255.224.0.0 | 8192 |
| /10 | 4194304 | 255.192.0.0 | 16384 |
| /9 | 8388608 | 255.128.0.0 | 32768 |
| /8 | 16777216 | 255.0.0.0 | 65536 |
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