Talk:KanColle Android/@comment-180.43.228.99-20160301074919/@comment-26091666-20160302101959

Actually, they could even check via your IP address which isn't hard. Sure it is very low level sort of data enumeration but it is not like that isn't doable.

Once they have obtained your IP address, they can easily do a WHOIS search based on your IP to get your ISP details and such for instance.

So no, even if you haven't "hated your wallet/purse" DMM/KDKW can still have the potential to see if you're a foreigner or not.

I am sure the recent happening with Kure where they tweeted about attacks/intrusions/etc originating from both within inside and outside Japan - they most likely would definitely know of foreigners with their non-Japanese IP addresses.