CIDR Notation
Revision as of 09:05, 12 May 2022 by IVSWikiBlue (talk | contribs)
| Subnet Mask | CIDR Prefix | Total IP Addresses | Usable IP Addresses | Number of /24 networks |
|---|---|---|---|---|
| 255.255.255.255 | 32 | 1 | 1 | 1/256th |
| 255.255.255.254 | 31 | 2 | 2* | 1/128th |
| 255.255.255.252 | 30 | 4 | 2 | 1/64th |
| 255.255.255.248 | 29 | 8 | 6 | 1/32nd |
| 255.255.255.240 | 28 | 16 | 14 | 1/16th |
| 255.255.255.224 | 27 | 32 | 30 | 1/8th |
| 255.255.255.192 | 26 | 64 | 62 | 1/4th |
| 255.255.255.128 | 25 | 128 | 126 | 1 half |
| 255.255.255.0 | 24 | 256 | 254 | 1 |
| 255.255.254.0 | 23 | 512 | 510 | 2 |
| 255.255.252.0 | 22 | 1024 | 1022 | 4 |
| 255.255.248.0 | 21 | 2048 | 2046 | 8 |
| 255.255.240.0 | 20 | 4096 | 4094 | 16 |
| 255.255.224.0 | 19 | 8192 | 8190 | 32 |
| 255.255.192.0 | 18 | 16,384 | 16,382 | 64 |
| 255.255.128.0 | 17 | 32,768 | 32,766 | 128 |
| 255.255.0.0 | 16 | 65,536 | 65,534 | 256 |
