Our system uses a multiple sources for resolution. Including a host database, trace route information, and other systems. Resolves IP addresses to Organization, Country, City, and State/Province, Latitude, Longitude. In most US cities it will also provide some extra information such as Area Code, and more. Use a License Key of 0 for Testing Use a License Key of 0 for Testing Use a License Key of 0 for Testing Our system uses a multiple sources for resolution. Including a host database, trace route information, and other systems. Resolves IP addresses to Organization, Country, City, and State/Province, Latitude, Longitude. In most US cities it will also provide some extra information such as Area Code, and more.