Networking
CIDR & Subnet Calculator
Work out the network address, usable host range, netmask and size of any IPv4 or IPv6 block.
Block
IPv4 and IPv6. Omit the prefix for a single host.
192.168.1.128/26
- Network address
- 192.168.1.128
- Last address
- 192.168.1.191
- First usable host
- 192.168.1.129
- Last usable host
- 192.168.1.190
- Netmask
- 255.255.255.192
- Wildcard mask
- 0.0.0.63
- Total addresses
- 64
- Usable hosts
- 62
- Prefix length
- /26
- Address family
- IPv4
- Scope
- Private (RFC 1918)
Binary · the first 26 bits are the network
- Address
- 11000000.10101000.00000001.10000010
- Network
- 11000000.10101000.00000001.10000000
- Netmask
- 11111111.11111111.11111111.11000000
IPv4 · Private (RFC 1918)