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Subnet Calculator

WEB

Calculate network and broadcast addresses, masks, host ranges and counts from an IP and CIDR — free in your browser.

IPv4 address

Prefix length

CIDR192.168.1.0/24

Network192.168.1.0

Broadcast192.168.1.255

Netmask255.255.255.0

Wildcard0.0.0.255

First host192.168.1.1

Last host192.168.1.254

Usable hosts254

Total addresses256

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