A large number of namespaces are used to describe the countries, cities, and regions of the world. In fact there are probably too many.
Factual has its own World Geographies data. To help our partners translate between it, Yahoo Geoplanet, and Geonames*, we’ve published a concordance that maps our entities to theirs, and the other way ‘round.
We hope you find it useful.
- Tyler Bell
After Hours Placemaker, Factual
*A huge thanks to David Blackman for the Geonames-to-Geoplanet mappings.