GeoNames Forum

Hi,
Thanks for the fantastic effort with GeoNames - it's a really great resource. I'm struggling to work out the correct approach for querying the postcode data sources.

For example,
If I go to http://www.geonames.org/ and select Andorra as the country (just for this example). I can then enter AD300 and geonames.org will correctly take me to the parish of Ordino in Andorra (which is indeed AD300).

However if I download AD.txt from the download area and open it, there are no postcodes in there at all. There is no "AD300" entry anywhere in that file. So, I'd like to understand how the geonames site is working out that AD300 is in fact Ordino?

Can anyone shed some light on this?

Thanks
Mark.

You can download postcodes from http://download.geonames.org/export/zip/
also from AD