Subnet Mask Reference and Host Capacity Matrix
⏳ 1 min readComplete lookup table for CIDR prefixes from /16 to /32, listing subnet masks, wildcards, and host capacities.
CIDR to Subnet Mask Reference Table
Use this lookup table to quickly reference common subnet divisions:
| CIDR Prefix | Subnet Mask | Wildcard Mask | Total Hosts | Usable Hosts |
|---|
| `/32` | `255.255.255.255` | `0.0.0.0` | 1 | 1 (Host Route) |
|---|
| `/30` | `255.255.255.252` | `0.0.0.3` | 4 | 2 (Point-to-Point) |
|---|
| `/29` | `255.255.255.248` | `0.0.0.7` | 8 | 6 |
|---|
| `/28` | `255.255.255.240` | `0.0.0.15` | 16 | 14 |
|---|
| `/27` | `255.255.255.224` | `0.0.0.31` | 32 | 30 |
|---|
| `/24` | `255.255.255.0` | `0.0.0.255` | 256 | 254 |
|---|
| `/22` | `255.255.252.0` | `0.0.3.255` | 1024 | 1022 |
|---|
| `/16` | `255.255.0.0` | `0.0.255.255` | 65536 | 65534 |
|---|
