Even if the ESN doesnt show up in Alltel's system (which it wont since its a Sprint phone) they will still hook it up for you. All you need to do is unlock the phone and reprogram the MSL# from the Sprint specific number to 000000 for Alltel. You just tell Alltel you got the phone off ebay and if they ask if its an Alltel phone tell them that it says Alltel on it and when you turn it on
