AT&T USA The last code did not work, but the box had a different IMEI# than the inside of phone. This is the # on the inside of the phone.
The last # is the correct one. The sim card I'm putting into it is a cingular small rectangle with missing corner. Cingular said it would work, they just wanted me to sign up for another two year contract. I broke my old one in a roll over crash in a semi truck and am afraid to get such a long contract, I'm on a fixed income.