1337...lmao!
1) Friend Codes do not expire.
2) Location does not count. WiFi goes all over the world.
May make random appearances every-so-often. Trying to officially return...
POKEMON BLACK FRIEND CODE: 1249-2602-6566
POKEMON BLACK2 FRIEND CODE: 1679-1583-9820
POKEMON Y FRIEND CODE: 3308-5051-2299