This tool creates an ip-to-country database, which can be used in multiple applications for geolocating internet users based on their IP address.

If you only need the ip2country database itself (not the program creating it), you can download it here.

The database is built automatically out of the 5 Regional Internet Registrars (RIR) databases: AFRINIC, APNIC, ARIN, LACNIC and RIPE. The resulting database is a plain sorted text file in the format

ip_from ip_to country_code

where IPs are 32 bit integers and the 2 letter country code is as defined in ISO 3166.

This tool uses the delegation files of all RIRs and additionally for APNIC and RIPE it uses the detailed databases.

In contrast to other tools, our database is free, self-creatable and more accurate.