How to find your Battle Net account number

1. Log on to B-net.
2. You will automaticaly be dumped into a Diablo retail chat room.
3. You have 3 windows on the screen, Message line (at bottom), Chat room (the largest window on the screen) and the player list (on the right).
4. Type: /whois YourNameHere on the Message line.
5. In the Chat room window, it will state in yellow, your name, Battle Account number and location.