/22 subnet
Mask 255.255.252.0 · 1,022 usable hosts · 1,024 addresses
| Subnet mask | 255.255.252.0 |
|---|---|
| Wildcard mask | 0.0.3.255 |
| Binary mask | 11111111.11111111.11111100.00000000 |
| Network / host bits | 22 / 10 |
| Total addresses | 1,024 |
| Usable hosts | 1,022 |
| Per /8 · /16 · /24 | 16,384 · 64 · – |
| Example | 192.168.10.77/22 → network 192.168.8.0, hosts 192.168.8.1 – 192.168.11.254, broadcast 192.168.11.255 |
Where /22 is used
Medium office or campus VLAN, ~1,000 hosts.
Block boundaries: a /22 must start at a multiple of 1,024 addresses. Calculate any specific address in the subnet calculator.
Neighbouring prefixes
Questions
How many hosts in a /22?
1,024 addresses, of which 1,022 are usable (the first is the network address and the last is broadcast).
What is the subnet mask for /22?
255.255.252.0. In binary: 11111111.11111111.11111100.00000000. The wildcard (inverse) mask is 0.0.3.255.