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Author Kaafar, Mohamed Ali ♦ Donnet, Benoit ♦ Uhlig, Steve ♦ Gueye, Bamba ♦ Poese, Ingmar
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Accuracy ♦ Geolocation ♦ Reliability
Abstract The most widely used technique for IP geolocation consists in building a database to keep the mapping between IP blocks and a geographic location. Several databases are available and are frequently used by many services and web sites in the Internet. Contrary to widespread belief, geolocation databases are far from being as reliable as they claim. 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. First, the vast majority of entries in the databases refer only to a few popular countries (e.g., U.S.). This creates an imbalance in the representation of countries across the IP blocks of the databases. Second, these entries do not reflect the original allocation of IP blocks, nor BGP announcements. In addition, we quantify the accuracy of geolocation databases on a large European ISP based on ground truth information. This is the first study using a ground truth showing that the overly fine granularity of database entries makes their accuracy worse, not better. Geolocation databases can claim country-level accuracy, but certainly not city-level.
Description Affiliation: Technische Universität Berlin/ Deutsche Telekom Laboratories, Berlin, Germany (Poese, Ingmar; Uhlig, Steve) || Universtité catholique de Louvain, Louvain-la-neuve, Belgium (Donnet, Benoit) || Université Cheikh Anta Diop de Dakar, Dakar, Senegal (Gueye, Bamba) || INRIA Rhône-Alpes, Grenoble, France (Kaafar, Mohamed Ali)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1993-07-01
Publisher Place New York
Journal ACM SIGCOMM Computer Communication Review (CCRV)
Volume Number 41
Issue Number 2
Page Count 4
Starting Page 53
Ending Page 56


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Source: ACM Digital Library