Dear Marat, You're right, those 33 probes should have been consistent with the others. We have corrected them in the database so you should now only see upper case country codes in all future probe archives (previous archives have not been rewritten). We believe that this was a historic artifact and will not happen again, but please let us know if you notice any further inconsistencies. Kind regards, Chris Amin RIPE NCC On 13/03/2017 07:54, Marat Khalili wrote:

While using use probes database at ftp://ftp.ripe.net/ripe/atlas/probes/archive/ I noticed that 33 probes have country_code values in lower case (e.g. "ru" instead of "RU"), some in "Connected" state. When trying to distribute probes evenly among available countries it obviously affects the result. Of course, it's easy to work around once you are aware of this 'feature', but I only found the problem by chance.

I wonder what's the story behind this and can this be fixed?

(Web-interface doesn't seem to be affected.)