devtools

CIDR Calculator

Calculate subnet ranges, network masks, broadcast address, and host count for any IPv4 or IPv6 CIDR block

Your input is processed locally and never sent to our servers.
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 hosts
256
Usable hosts
254
CIDR prefix
/24

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