Subnet Calculator

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subnet

Input

CIDR target (for example 192.168.1.10/24 or 2001:db8::1/64).

What it calculates

Network address.
Prefix / netmask details.
Address counts.
Usable host range (where applicable).
Gateway suggestions.

Tips

IPv4 and IPv6 are auto-detected from your input.
Make sure CIDR notation includes both address and prefix.

Deeplink

netdebug://subnet?target=192.168.1.0/24

Tip: in the app, open the Export menu (the share icon) on this screen and choose Copy Deeplink to copy this link as a Universal Link with your current target and options already filled in.