Sorry for the techno babble, but......
AT&T and TMobile use GSM technology, as well as most of the world.
Sprint & Verizon use CDMA technology, along with maybe 5 other countries.
The term "unlocked" is used in conjunction with GSM.
You can probably have a CDMA phone "reprogrammed" but that requires $ or technical ability and software. CDMA phones are preprogrammed with a list of towers they can connect to. GSM just connects to whatever it can find.
Simply stated, you need to find a phone that is SPRINT branded. Anything else and you may be wasting your money.
Edited 1 time(s). Last edit at 07/20/2011 02:58AM by data1025.