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Calculate IPv4 IP address ranges, number of hosts, broadcast address, and subnets masks simply with the Subnetting Calculator. The Subnetting Calculator preforms both traditional classful (A, B, C) subnet mask and classless (CIDR) subnet mask calculations.

- Classless Inter Domain Routing (CIDR)
- Classful (A, B, C)
- Designed for network administrators. 
- Easy to use IPv4 addressing calculator.

Calculate IPv4 IP address ranges, number of hosts, broadcast address, and subnets masks simply with the Subnetting Calculator. The Subnetting Calculator preforms both traditional classful (A, B, C) subnet mask and classless (CIDR) subnet mask calculations.

- Classless Inter Domain Routing (CIDR)
- Classful (A, B, C)
- Designed for network administrators. 
- Easy to use IPv4 addressing calculator.

Subnetting Calculator

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