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/22 subnet mask
A /22 block has 1,024 addresses with the netmask 255.255.252.0.
255.255.252.0| CIDR notation | /22 |
| Netmask | 255.255.252.0 |
| Wildcard mask | 0.0.3.255 |
| Total addresses | 1,024 |
| Usable hosts | 1,022 |
| Usable in an AWS subnet | 1,019 |
| Example range | 10.0.0.0/22: 10.0.0.0 to 10.0.3.255 |
How /22 fits with other sizes
- A /8 holds 16,384 subnets of /22.
- A /16 holds 64 subnets of /22.
- A /20 holds 4 subnets of /22.
- It splits into 2 subnets of /23.
- It splits into 4 subnets of /24.
- It splits into 16 subnets of /26.