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    Tech Tools/Subnet Calculator

    Subnet / CIDR Calculator

    Enter an IPv4 address with a CIDR prefix or subnet mask to get the network, broadcast, and usable host range.

    Results

    Private range
    Network address192.168.1.0
    CIDR192.168.1.0/24
    Netmask255.255.255.0
    Wildcard0.0.0.255
    Broadcast address192.168.1.255
    First usable host192.168.1.1
    Last usable host192.168.1.254
    Usable hosts254
    Total addresses256
    IP classC

    IPv4 only. Runs entirely in your browser — nothing is sent anywhere.