Subnet calculator
IPv4 and IPv6 prefix arithmetic with the binary view, split and supernet helpers.
Try:
- Network
- 10.20.30.64/27
- Address type
- Private (RFC 1918)
- Class (historical)
- A
- Netmask
- 255.255.255.224
- Wildcard
- 0.0.0.31
- Broadcast
- 10.20.30.95
- Usable range
- 10.20.30.65 – 10.20.30.94
- Total addresses
- 32
- Usable hosts
- 30
- Reverse zone
- 30.20.10.in-addr.arpa
Binary
Address00001010.00010100.00011110.01001101
Mask11111111.11111111.11111111.11100000
network bits · host bits
Supernets