Well, just yesterday I set up my old ATT phone with "CallPlus" a prepaid company. http://www.icallplus.com . They are new and their website is still being worked on. This site : http://www.ecallplus.com will give you more information then theirs. They use the ATT network to supply service. Before I set up my voicemail it even answered ATT. They have possibly the best pre-paid deal I have seen. CellPlus: $100 you get 400 min = $0.25 a min . Tracfone: $95 is 150 min = $0.63. Verizon Free-up: $150 is 600 min = $0.25. Voicestream: $100 is 500 min = $0.20 without national roaming Plus, with CallPlus the cards expire after 90 days, unless you add more time within the 90 days, so the old time rolls over to the new time. FYI: My friend owns cell store that sells this, so if you are interested just let me know. PS: Their customer service answered within 30 sec the two times I called.