When you sign up for Internet service, your Internet service provider gives you an Internet Protocol (IP) serial number that identifies both your location and the network interface. It does not give exact addresses, but comes as close as providing your zip code and city. To prevent certain sites from using this information for spamming or finding out your location, you can use free proxy services online to hide your IP serial number, replacing it with the IP serial number of the proxy service. Writer Bio

How to Hide Your IP Address   Serial Number - 94