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CIDR / Subnet Calculator

Compute network, broadcast, mask, and host range.

CIDR (e.g. 192.168.1.0/24)

cidr	192.168.1.0/24
netmask	255.255.255.0
network	192.168.1.0
broadcast	192.168.1.255
firstHost	192.168.1.1
lastHost	192.168.1.254
totalHosts	256
usableHosts	254

Learn more

CIDR & Subnets Explained →

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