172.16.0.0/12
172.16.0.0/12 is a private network with subnet mask 255.240.0.0. It contains 1,048,576 total addresses and 1,048,574 usable hosts, ranging from 172.16.0.1 to 172.31.255.254, with broadcast address 172.31.255.255.
Subnet details
| Network address | 172.16.0.0 |
|---|---|
| Subnet mask | 255.240.0.0 |
| Wildcard mask | 0.15.255.255 |
| CIDR notation | 172.16.0.0/12 |
| Broadcast address | 172.31.255.255 |
| First usable host | 172.16.0.1 |
| Last usable host | 172.31.255.254 |
| Total addresses | 1,048,576 (2^20) |
| Usable hosts | 1,048,574 |
| Address type | Private (RFC 1918) |
| Reverse DNS zone | 172.in-addr.arpa |
Usable hosts by platform
| Platform | Usable hosts |
|---|---|
| Standard LAN | 1,048,574 |
| AWS VPC | 1,048,571 |
| Azure VNet | 1,048,571 |
| Google Cloud VPC | 1,048,572 |
| Oracle Cloud VCN | 1,048,573 |
Need to split 172.16.0.0/12 into smaller subnets or see the full block map? Open this network in the calculator →