CIDR / Subnet Calculator

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Calculate IP ranges, subnet masks and CIDR blocks

CIDR Notation

Subnet Details

Network Address

192.168.1.0

Broadcast Address

192.168.1.255

Subnet Mask

255.255.255.0

First Usable Host

192.168.1.1

Last Usable Host

192.168.1.254

Total Addresses

256

Usable Hosts

254

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