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IPv4 Subnet Calculator

Network, broadcast and host range for a subnet.

Your details

IP address

Prefix length (CIDR)

Network

192.168.1.0/24

Subnet mask

255.255.255.0

Broadcast

192.168.1.255

Usable hosts

254

Host range

192.168.1.1 – 192.168.1.254

How it works

The prefix length sets the subnet mask; AND-ing it with the IP gives the network address.

Frequently asked questions