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Quick IP/Subnet Calculator
This is an extremely simplistic, but useful subnet calculator for calculating the network information from the IP address and subnet. It takes the IP and subnet input (i.e. 192.168.0.1/24) and returns the following information and the binary conversions; host address, network mask, wildcard mask, network address, broadcast address, first host in network, number of hosts in network, and if it’s a private IP range.