/30 Subnet Mask: 255.255.255.252

Answer
255.255.255.252 · 2 usable hosts

A /30 network uses 30 bits for the network and 2 for hosts, giving 4 addresses and 2 usable hosts. It is typically used for point-to-point links between routers.

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    /30 at a glance

    PropertyValue
    Subnet mask255.255.255.252
    Wildcard mask0.0.0.3
    Total addresses4
    Usable hosts2
    Size relative to /2464 per /24

    Example: 192.168.1.0/30

    FieldAddress
    Network192.168.1.0
    First host192.168.1.1
    Last host192.168.1.2
    Broadcast192.168.1.3

    Frequently asked questions

    How many hosts are in a /30?

    2 usable hosts out of 4 addresses.

    What is the wildcard mask for /30?

    0.0.0.3, the inverse of 255.255.255.252.

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