IPv4 Subnet Calculator

Calculate subnet masks, ranges, and CIDR notation

IP address

CIDR /24

CIDR notation

192.168.1.0/24

Subnet mask

255.255.255.0

Wildcard mask

0.0.0.255

Network address

192.168.1.0

Broadcast address

192.168.1.255

First usable host

192.168.1.1

Last usable host

192.168.1.254

Total usable hosts

254

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