BCC is ok - it stands for Beeper Cellular Corporation. Anyhow check out what they did to my friend. He signed up for a year contract whatever service with them right, and my friend's T28 World that the salesman tried to pass off as new was kind of scratched up, the manual had soy sauce stains on it, and the headset that he gave him was broken. They have ok prices, TONS of accessories, but word of advice if you guys buy anything from them, be sure to check over whatever you get before you leave the place.
Their contact info is:
BCC
9252 Bolsa Ave., Suite A
Westminster, CA 92683
Tel: 714-373-3100
Fax: 714-373-3130
They carry AT&T, Pac Bell, Airtouch, Sprint, and MCI.
Regarding area codes, you can get any Pacific Bell wireless area code, period. I don't know if you can just sign up for one immediately, but the way you had to do it before was to sign up for your phone with a local area code wherever you are doing the contract, and then you can call 611 and have them change your profile to whatever area code that you want. This was back in the day when there were tons of different plans for different areas of CA, like you couldn't sign up with an SF plan (which would normally be much much better than LA and SD plans) with an LA #, you would have to change it with 611 after you finish activation.
Cingular is trying to consolidate all of their plans into one badass plan, and IMHO, I think they are doing a very good job with the 'Cingular Home' and 'Cingular Nation' plans.