If your using a verizon tower you'll get verizon when dialing 611.. Like me I have Alltel but where I live I use a verizon tower. If I want to dial 611 or any of those codes I have to wait till I am in the city where I use the alltel tower.
Also, if you want your local sid just call alltel and ask. They will tell you the one your supposed to be using.
Have you actually called alltel and had that phone activated?
Edit: I have a few posts
in this thread that you might find helpful..