GeoNames Forum

Hello,
I have just downloaded admin2Codes.txt and cities1000.txt but when I tried to join them with a query on the admin2Codes I found that there were a large number of cities1000 records with no corresponding admin2code record. For example a town called Bowdon in the UK (GB) has the code GB.ENG.C5 (which should give a county of Cheshire) but there is no C5 in the file.
Am I missing something or is the admin2Codes.txt missing something ... many things.

Thank you in advance for any help and advice you can give.