IPv4 Subnet Calculator
Network address, broadcast, host range, wildcard mask and binary breakdown for any IPv4 CIDR block.
Results for 198.80.0.0/12
198.80.0.0/12 is the network in CIDR notation · Public
- Network address
- 198.80.0.0
- Broadcast address
- 198.95.255.255
- Subnet mask
- 255.240.0.0
- Wildcard mask
- 0.15.255.255
- Total addresses
- 1,048,576
- Usable hosts
- 1,048,574 (excludes network & broadcast)
- First usable host
- 198.80.0.1
- Last usable host
- 198.95.255.254
- CIDR notation
- 198.80.0.0/12
- IP type
- Public
How the bits line up
| Octets (binary) | ||||
|---|---|---|---|---|
| IP address | 11000110 | 01010000 | 00000000 | 00000000 |
| Subnet mask | 11111111 | 11110000 | 00000000 | 00000000 |
| Network | 11000110 | 01010000 | 00000000 | 00000000 |
| Broadcast | 11000110 | 01011111 | 11111111 | 11111111 |
The mask's 12 leading ones select the network portion; the remaining 20 bits are available for hosts.
Keep exploring
See every fact about the /12 subnet mask, plan multiple subnets with the VLSM calculator, or convert ranges on the range-to-CIDR tool.