There are many Nintendo sites that fan share fan codes on. People can collect many friends on them.
2535-3800-7104 is the Swimmingbird 3ds friend code.
A friend code is a series of numbers which allow friends to connect through the Nintendo 3DS network.
3DS games do not have friend codes, it is the friend code of the 3DS itself that you use, to be able to play multiplayer on a 3DS game.
A 3DS code is a code where people online share their own unique code to add into your 3DS so you are friends online
The 3DS itself has a universal friend code that is used on all the 3DS games and applications the player uses. It means they only need to add a friend once, by adding their 3DS code, they can play multiplayer in any 3DS game that supports it. For regular DS games, it is the game itself that has its own code, so you'd register your friend's Soul Silver friend code on your own Soul Silver, etc, whether you play it in a 3DS or the older models. You could not though add someone's Soul Silver code to the 3DS friend list.
The closest equivalent would be your 3DS Friend Code.
8709 9807 5466
The 3DS game ID is located on the front of the 3DS gamecard.
ID is your user name and key code is the numbers and letters from your friend.
Well my 3ds friend code is 0044-3292-5505 and who ever has an answers.com account please edit and put your friend code. And my name is Jake. P.S. I have 0 friends. Hi i have 0 friends to mine is: 0344-9760-1962
to register your friends your friend must have a 3ds with swapnote also and then once you find them you have to enter there code
furry friend- 2009-4783-837 id-34586