Lucas Quaresma

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IP / CIDR Calculator

Inspect IPv4 and IPv6 networks, ranges, masks and address counts without sending data anywhere.

Runs locally in your browser

Input / network

Examples: 192.168.10.42/24 or 2001:db8::1/64

Calculated range

∕24

Enter an IPv4 or IPv6 address with a prefix to inspect its network.