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Subnet Calculator

Local processing · no uploads

Compute network/broadcast address and host range from IP + CIDR.

Network address192.168.1.0

Broadcast address192.168.1.255

Subnet mask255.255.255.0

Wildcard mask0.0.0.255

First usable host192.168.1.1

Last usable host192.168.1.254

Usable hosts254

Prefix length/24

IP address192.168.1.100

IP classC

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