IPv4 Subnet Calculator
Network address, broadcast, host range, wildcard mask and binary breakdown for any IPv4 CIDR block.
Results for 192.168.1.130/26
192.168.1.128/26 is the network in CIDR notation · Private (RFC 1918)
- Network address
- 192.168.1.128
- Broadcast address
- 192.168.1.191
- Subnet mask
- 255.255.255.192
- Wildcard mask
- 0.0.0.63
- Total addresses
- 64
- Usable hosts
- 62 (excludes network & broadcast)
- First usable host
- 192.168.1.129
- Last usable host
- 192.168.1.190
- CIDR notation
- 192.168.1.128/26
- IP type
- Private (RFC 1918)
How the bits line up
| Octets (binary) | ||||
|---|---|---|---|---|
| IP address | 11000000 | 10101000 | 00000001 | 10000010 |
| Subnet mask | 11111111 | 11111111 | 11111111 | 11000000 |
| Network | 11000000 | 10101000 | 00000001 | 10000000 |
| Broadcast | 11000000 | 10101000 | 00000001 | 10111111 |
The mask's 26 leading ones select the network portion; the remaining 6 bits are available for hosts.
Keep exploring
See every fact about the /26 subnet mask, plan multiple subnets with the VLSM calculator, or convert ranges on the range-to-CIDR tool.