Tools › Subnet cheat sheet › /25
/25 subnet: mask and number of hosts
A /25 network has a subnet mask of 255.255.255.128 and 128 total addresses (126 usable hosts).
| Property | Value |
|---|---|
| Prefix | /25 |
| Subnet mask | 255.255.255.128 |
| Wildcard mask | 0.0.0.127 |
| Total addresses | 128 |
| Usable hosts | 126 |
| Equivalent /24 networks | 1/2 of a /24 |
When it is used
Half of a /24. Useful for splitting a /24 into two networks, for example servers and clients.