Bhd, "IP address geolocation to identify website visitor's geographical location,". GeoBytes Inc., 'GeoNetMap - geobytes' IP address to geographic location database.
GEOBYTES IP LOCATOR SOFTWARE
Software 77, Free IP to country database.IPInfoDB, Free IP address geolocation tools.Host IP, My IP address lookup and geotargeting community geotarget IP project.Net World Map, The net world map project.GeoURL, The GeoURL ICBM address server.Sirer, "Golocalization on the Internet through constraint satisfaction," in Proc. ACM SIGCOMM IMC Conference, October 2006. Chawathe, "Towards IP geolocation using delay and topology measurements," in Proc. Subramanian, "An investigation of geographic mapping techniques for Internet hosts," in Proc. Fdida, Constraint-based geolocation of Internet hosts, IEEE/ACM Transactions on Networking, vol. Geolocation databases can claim country-level accuracy, but certainly not city-level. This is the first study using a ground truth showing that the overly fine granularity of database entries makes their accuracy worse, not better. In addition, we quantify the accuracy of geolocation databases on a large European ISP based on ground truth information.
Second, these entries do not reflect the original allocation of IP blocks, nor BGP announcements. This creates an imbalance in the representation of countries across the IP blocks of the databases. In this paper, we conduct a comparison of several current geolocation databases -both commercial and free- to have an insight of the limitations in their usability.įirst, the vast majority of entries in the databases refer only to a few popular countries (e.g., U.S.). Contrary to widespread belief, geolocation databases are far from being as reliable as they claim. Several databases are available and are frequently used by many services and web sites in the Internet.
The most widely used technique for IP geolocation consists in building a database to keep the mapping between IP blocks and a geographic location.
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