Get the network address, broadcast address, usable host range, wildcard mask and binary breakdown for any IPv4 CIDR. Instant and private.
IP math happens locally in your browser. No address is ever sent anywhere.
See the address, network, mask and broadcast in 32-bit binary for easy verification.
Results recalculate automatically as you type or change the prefix.
Works with any valid IPv4 address and prefix from /0 to /32.
Numbers, bases, conversions and more for developers and designers.