Sorry...I guess I should have been more clear. I requested and got a 213 area code, when I lived in 949 (and the store was in 310, I think)...I could have gotten a 949, but chose 213 instead. But like I said before, I don't know how much, if any, the fact that all of these area codes are in the LA region played.
How about calling an AT&T store in Vegas and asking them? I'd imagine if they can do it now with there current selection, that the iPhone isn't going to change that.