[Tenny]

Well first off ESN swapping is illegal. Mods, if I say too much please let me know. I realize he's probably not trying to do this as an illegal method, just trying to get his phone working on alltel... still illegal but not as bad imo...

Where is the alltel ESN from? Did you use it from your own phone already on alltel? (If so then turn off the old one, and it should already work fine..) If it was randomly generated from whatever then you need to change it to a different one.

All in all, the best method is just to get Alltel to pick up the Sprint ESN. Sometimes it's hard to get them to do it, but if they have any independent retailer, those are typically those that will do it, sometimes for a $20-50 "activation" fee.