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Find the network address, broadcast address, usable hosts and masks for an IPv4 subnet.
Formula used
Network = IP AND mask; Broadcast = Network OR wildcard; Usable hosts = 2^(32 − prefix) − 2
Example
192.168.1.10 with a /24 mask is in network 192.168.1.0, with hosts 192.168.1.1 to 192.168.1.254 (254 usable hosts).
Frequently asked questions
What does /24 mean?
The first 24 bits are the network part, so the mask is 255.255.255.0.
Why subtract 2 hosts?
The first address is the network and the last is the broadcast address.
Results are estimates for general information only and are not professional financial, medical or legal advice.
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