@Azvede @apas_csc @vees Little you can do about that given the ISP can assign the blocks wherever, and even if you establish a better location somehow, e.g. by correlating with other information you've collected, that IP can end up being reassigned five minutes from now, and now your location data is wrong again. This has always been the case with IPv4 too - e.g. I could change the mapping of our IP blocks to cities at will when I ran an ISP way back.