iPhone

 

The IP Subnet Calculator is a free, easy-to-use subnet calculator app. Convert IPv4 and IPv6 addresses the easy way. Perfect for networking professionals and students.

This subnet calculator converts both IPv4 and IPv6 addresses and displays useful information about your subnets like number of hosts, subnet size, class, subnet mask, wildcard, network address, first address, last address and broadcast address.
Take the CIDR slider and watch the subnet properties change accordingly to the IP address

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