Your Questions About Unlocked Gsm Iphone

Joseph asks…

Can you use an unlocked iPhone with US Cellular?

My friend wants to buy my iPhone from me but Im not sure if Us Cellular is a gsm network. Thanks

Pete answers:

Hello,

As long as the iPhone is properly unlocked you can use it with any sim you wish, not inly in the states but anywhere in the world. So your friend will have no problems using it with another network.

Linda asks…

I have an unlocked iphone from Japan, can I use it with a pre-paid service provider?

The iphone was a gift. I want to use a pay-as-you go plan. Are there any pre-pay phones that use sim cards (GSM)? I’d love to find something like the cricket unlimited everything plan for $55 a month.
Specifically, what no-contract service providers use sim cards?

Pete answers:

Only AT&T and T-Mobile use SIM for GSM/W-CDMA phone in USA, though there’re other MVNOs who sell their SIM but use T-Mobile or AT&T as their carrier.
Sprint, Verizon, Cricket, Virgin Mobile do not use SIMs for their domestic services.

If it is unlocked, you can use T-Mobile (2G GSM only) or AT&T (3G and 2G) prepaid plan.

However, AT&T officially does not allow one to use a prepaid SIM with iPhone. So, it is tricky. And, their prepaid plan is expensive than postpaid one if you use a lot of data.