Here is my take on IP addresses - IP addresses are used on the internet to point to websites/servers (for example, the IP address of http://220.127.116.11 is the same as http://superwin.com) and on networks to specify the devices connected to it, like a computer, a printer or a router. An IP address is made up of four numbers separated by periods, for example, 0.0.0.0. I don't know that each specific segment has a specific meaning or use. I always looked at them combined making up one number. When used on the internet, different parts of the world, countries, and host servers are assigned ranges of IP addresses, so that if you have an IP address, you can tell using a directory where the website is hosted (the American directory is at http://www.arin.net).