The number next to your BattleTag is called a BattleTag Code. In the future, your friends will be able to use your BattleTag and BattleTag Code to find you on Battle.net
How do I add a BattleTag friend in Diablo III?
To add a friend via their BattleTag manually in Diablo III, simply type their BattleTag and code (e.g. DemonStomper#1537) into the Send Friend Request field in the Add Friend interface. This will send the player a BattleTag friend request; if the other player accepts your request, your BattleTag will appear on each other's friend lists. You can find your BattleTag identifier code in Battle.net account management (on the Account > Summary page) or in the Diablo III client when you open the �Social� interface.
You can also send BattleTag friend requests by right-clicking a player�s BattleTag in places where it appears in the Diablo III game interface (such as in public chat channels, in groups, and so on)
ill be the first to post! feel free to add
Spitonoikokurhs: noikokurhs#2405
teh_: teharos#2794
CL.Thanos: Scorpdeadly#1956
omg.stogrc:Duku#2606
charizard:Slester#2987
ItsTimeForFF:ItsTimeForFF#2751
Sardanapalos_QQ:Sardanapalos#1828
G.Virus: ViruS#2893
PRO_ta8litis: SavePandas#2896
forthewin_: forthewin#2623
TeoMaN: TeoMaN#2314
underworld: underworld#2859