/8 Subnet Mask: 255.0.0.0

Answer
255.0.0.0 · 16,777,214 usable hosts

A /8 network uses 8 bits for the network and 24 for hosts, giving 16,777,216 addresses and 16,777,214 usable hosts. It is typically used for very large private networks (10.0.0.0/8).

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    /8 at a glance

    PropertyValue
    Subnet mask255.0.0.0
    Wildcard mask0.255.255.255
    Total addresses16,777,216
    Usable hosts16,777,214
    Size relative to /2465536 × /24

    Example: 10.0.0.0/8

    FieldAddress
    Network10.0.0.0
    First host10.0.0.1
    Last host10.255.255.254
    Broadcast10.255.255.255

    Frequently asked questions

    How many hosts are in a /8?

    16,777,214 usable hosts out of 16,777,216 addresses.

    What is the wildcard mask for /8?

    0.255.255.255, the inverse of 255.0.0.0.

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