Choose Your Weakest Area
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Common IP Subnets
| Prefix | IP Addresses | Subnet Mask |
|---|---|---|
| /32 | 1 | 255.255.255.255 |
| /31 | 2 | 255.255.255.254 |
| /30 | 4 | 255.255.255.252 |
| /29 | 8 | 255.255.255.248 |
| /28 | 16 | 255.255.255.240 |
| /27 | 32 | 255.255.255.224 |
| /26 | 64 | 255.255.255.192 |
| /25 | 128 | 255.255.255.128 |
| /24 | 256 | 255.255.255.0 |
| /23 | 512 | 255.255.254.0 |
| /22 | 1,024 | 255.255.252.0 |
| /21 | 2,048 | 255.255.248.0 |
| /20 | 4,096 | 255.255.240.0 |
| /19 | 8,192 | 255.255.224.0 |
| /18 | 16,384 | 255.255.192.0 |
| /17 | 32,768 | 255.255.128.0 |
| /16 | 65,536 | 255.255.0.0 |