Do we know for absolute certain that each region has all numbers chronologically filled? Looking at the various numbers it almost seems to me as if it works like this: if there are 140000 winners, they give 140000 numbers (or actually fewer because some numbers have more than one winner attached ie derivatives), but numbers are not duplicated among regions (I guess this bit can easily be checked with some digging on the CEAC site). So if for example number 2345 is assigned to EU, there is no 2345 number for AF etc. The max numbers per region are then assigned based on number of winners per region, relative to total winners. (This latter assertion would imply that above a certain number, all numbers are African.) I'm not sure if I've explained my thinking entirely clearly, but does this make sense to anyone else? It would certainly explain why some numbers per region seem so high, but the overall max number is always within the overall number of winners.