Is the ESN NUMBER CLEAN ON THIS PHONE..... The ESN number must be clean to activate on the AT&T network which means this phone has not been reported stolen, under AT&T contract, Has back bills owed on it... these are some examples that would make the ESN number not clean and AT &T wouldnt allow to be activated on their network. Reason why I am asking is I want to buy minutes on a pay as you go basis and in order to do so the ESN number must be clean