DNS Insight
Subnet Calculator
Subnet Calculator - Calculate IP Subnets
Calculate subnet information including network address, broadcast, and host range for IPv4 networks.
How It Works
Given an IP address and CIDR prefix or subnet mask, the tool calculates network boundaries using bitwise AND operations on the address and mask.
Understanding Results
Results include network address, broadcast address, first/last usable host, number of hosts, wildcard mask, and binary representations.