An IP network or subnet consists is a smaller part of the entire IP address space. It's used to segment networks into smaller, manageable parts for both routing as organizational purposes. A network consists of a network address and a subnet mask or prefix length.

When representing an IP address as a binary string (only 1 and 0), the prefix length states how many bits are part of the network part of the address, and thus how many are part of the host part of the address. When applying the mask over the IP using a binary AND, you end up with the network address.

Calculating subnets isn't that hard, but it's tedious to do manually. That's where subnet calculators like this one come into play. Simply enter an address in the textbox, select the desired size, and you'll get the details of the network that address is part of.

Yes, it's kind of a gimmick, but we all know I've tickled your curiosity and now you just need to know. I'll apply a "difficult and top secret" (definitely not md5 + xor stack) algorithm on your name and transform that into a IPv4 and IPv6 address because why not.

No inspiration? Try mine!