The program code is released under the following licence: GPL for personal use on a single computer. All other users (including Commercial, Charity, Educational, Government) must apply in writing for a licence for use from Nigel Horne at <njh at nigelhorne.com>.

Refer to the source URL for licencing information for these files cities.csv is from https://www.maxmind.com/en/free-world-cities-database admin1.db is from http://download.geonames.org/export/dump/admin1CodesASCII.txt admin2.db is from http://download.geonames.org/export/dump/admin2Codes.txt

See also http://download.geonames.org/export/dump/allCountries.zip

To significantly speed this up, gunzip cities.csv and run it through the db2sql script to create an SQLite file.