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IP Subnet Calculator

Calculate network address, broadcast, subnet mask and usable host range from an IPv4 address and CIDR prefix.

Inputs

IPv4 Address

CIDR Prefix

Result

Network

192.168.1.0/24

Subnet mask255.255.255.0

Broadcast192.168.1.255

First host192.168.1.1

Last host192.168.1.254

Usable hosts254

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