[racedog]

You call VZW Global Services and tell them you are planning an overseas trip and that you don't want to be using their VZW global services because they are too expensive (they are). You want to buy a sim when you are overseas and use the local services (which you can do and are much cheaper) and they will give you an unlock code. Once you have that you can pop in an AT&T or TMO prepaid sim and it will work just fine locally in the USA.

I do this to keep my personal cell number private and use the other for business calls via my office asterisk phone system. The customer I call only sees our office phone number in the caller ID and my cell numbers stay private that way.

R