Currently Being ModeratedApr 3, 2013 1:26 PM (in response to dion13)
Contact Sprint to be certain your iPhone is Unlocked for any carrier SIM, and then it should work.
Currently Being ModeratedApr 3, 2013 1:28 PM (in response to dion13)
I can confirm you can purchase PAYG sims ,(no contract at all ) in UK from all UK carriers
You load cash into it and just use , obviously with a telephone number allocated by the relevant carrier
Whether it works with a Sprint iPhone cannot confirm as it will be CDMA and we are 100% GSM in Europe
One of the US responders will advise you
Currently Being ModeratedApr 3, 2013 2:34 PM (in response to Peter Gillespie)
iPhone 4S for all US Carriers (Sprint included) is considered so called" World Phone", but you must have the Carrier Unlock it, to be used with other Carrier SIMs.