IP Subnet Calculator
Calculate network address, broadcast address, host range, and subnet mask from IPv4 CIDR notation at a glance.
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What is this tool?
Calculate network address, broadcast address, host range, and subnet mask from IPv4 CIDR notation at a glance.
How to use
Use the input area above to enter your data. Results appear instantly. All processing runs in your browser; no data is sent to any server.