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Description
Fast IP Subnet Calculator - Calculates network, broadcast, host range, mask and more. Works for IPv4. Enter the IP address and mask in CIDR (/24) or decimal (255.255.255.0) format, and that's it! You'll get information back about the network address, wildcard mask, broadcast, first and last host, and the number of usable IP addresses. It even understands the /31 mask. This will shorten your IP address counting pain. Good luck, Network Admin !
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