| Network Bits (CIDR) | Total IP Addresses | Usable Host IPs |
|---|---|---|
| /8 | 16,777,216 | 16,777,214 |
| /9 | 8,388,608 | 8,388,606 |
| /10 | 4,194,304 | 4,194,302 |
| /11 | 2,097,152 | 2,097,150 |
| /12 | 1,048,576 | 1,048,574 |
| /13 | 524,288 | 524,286 |
| /14 | 262,144 | 262,142 |
| /15 | 131,072 | 131,070 |
| /16 | 65,536 | 65,534 |
| /17 | 32,768 | 32,766 |
| /18 | 16,384 | 16,382 |
| /19 | 8,192 | 8,190 |
| /20 | 4,096 | 4,094 |
| /21 | 2,048 | 2,046 |
| /22 | 1,024 | 1,022 |
| /23 | 512 | 510 |
| /24 | 256 | 254 |
| /25 | 128 | 126 |
| /26 | 64 | 62 |
| /27 | 32 | 30 |
| /28 | 16 | 14 |
| /29 | 8 | 6 |
| /30 | 4 | 2 |
| /31 | 2 | 2 (RFC 3021) |
| /32 | 1 | 1 (Host / Loopback) |
CIDR Subnet Table: Total and Usable IP Addresses
