Networking
How Subnet Masks Work
A subnet mask determines which part of an IPv4 address belongs to the network and which part identifies a host.
Example
For 192.168.1.10/24:
- Network:
192.168.1.0 - Subnet mask:
255.255.255.0 - Usable hosts:
192.168.1.1through192.168.1.254
Why subnets exist
Subnets improve security, organization, and routing efficiency inside larger networks.
IPLocator subnet calculator
Our subnet tool calculates mask, wildcard mask, broadcast address, and usable host counts for IPv4 networks.