How Many IPs in a /26?
64 addresses, 62 usable, mask 255.255.255.192.
A /26 is a quarter of a /24, a typical size for a small office or a modest cloud subnet.
| Subnet mask | 255.255.255.192 |
|---|---|
| Wildcard mask | 0.0.0.63 |
| Total addresses | 64 |
| Usable hosts | 62 |
| In /24 terms | 4 of them fit in one /24. |
| Example (10.0.0.0/26) | 10.0.0.0 - 10.0.0.63 |
Usable addresses in cloud subnets
Cloud providers reserve extra addresses in every subnet, so fewer than 62 are available to your machines.
| AWS | 59 usable |
|---|---|
| Azure | 59 usable |
| Google Cloud | 60 usable |
| Oracle Cloud | 61 usable |
Limits and reserved counts are commonly documented values; check your provider's current documentation before you plan around them.
Other sizes
/22 | /23 | /25 | /26 | /27 | /28
Split a block into /26 subnets with the subnet splitter, or calculate any block with the CIDR calculator.
FAQ
How many usable IP addresses are in a /26?
62 usable addresses out of 64. The network and broadcast addresses are reserved.
What is the subnet mask for /26?
255.255.255.192, with wildcard mask 0.0.0.63.
How many usable addresses does a /26 have in AWS?
59, because AWS reserves five addresses in every subnet.