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    What Is This Tool?

    Subnet Calculator helps network students and people setting up a home or office network. Enter an IPv4 address and prefix length to check its network address, masks and usable address range.

    Privacy and Security

    The numbers you enter in the Subnet Calculator (ip address, prefix length and so on) are calculated in your browser. They are not sent to or saved on Adobe IQ servers, and they disappear when you close the page.

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    How to use this tool

    • Enter your ip address and prefix length.
    • Fill in the remaining fields of the Subnet Calculator.
    • Read your status instantly.

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    All Calculators

    Subnet Calculator

    IPv4 only. Type the address as four numbers and the prefix as 0–32, for example 192.168.1.10 / 24.

    Result

    Network address
    192.168.1.0
    Broadcast address
    192.168.1.255
    Subnet mask
    255.255.255.0
    Wildcard mask
    0.0.0.255
    Usable hosts
    254
    First usable
    192.168.1.1
    Last usable
    192.168.1.254