Tools › Subnet cheat sheet › /16
/16 subnet: mask and number of hosts
A /16 network has a subnet mask of 255.255.0.0 and 65,536 total addresses (65,534 usable hosts).
| Property | Value |
|---|---|
| Prefix | /16 |
| Subnet mask | 255.255.0.0 |
| Wildcard mask | 0.0.255.255 |
| Total addresses | 65,536 |
| Usable hosts | 65,534 |
| Equivalent /24 networks | 256 |
When it is used
A large site or VPC. Often split into many /24 networks. Includes the private range 172.16.0.0/12 as 16 of these.