Calculate subnet boundaries locally with ipcalc

Fri, 06 Nov 2026 16:00:00 +0100

I often use ipcalc in the terminal to check a subnet and its address space. It gives me a quick local calculation without entering details of the network I am working in into a public website.

ipcalc 192.168.0.1/24

This example uses Krischan Jodies’ ipcalc . It calculates the subnet boundaries and host range from the supplied address and prefix. The host count describes the address space; it does not show how many devices are connected or which addresses are available.

Subnetting on Ivan Versluis — Networknet

Calculate subnet boundaries locally with ipcalc