There is NO Ar code that will let you access other regions.
this is from the pokesav faq and explains that all regions should be capatible through pokesav. so read this then tell me that you can't get other regions. pokesav is used through th AR
What region games are compatible?
All regions should be compatible. If you are editing a Japanese version game, make sure your computer has the correct language packs installed and that you have a version of Pokesav that is compatible with Japanese characters (download at the bin). There are problems with Korean characters with the Korean version of Diamond and Pearl.