<p>DD has a Verizon iPhone 4S, she got it about 6 months ago. A call to customer support saying we are going to Europe was all it took for them to unlock it for Europe (it is still locked in the US). The 4S is the only Verizon iPhone that will work in Europe.</p>
<p>I assumed At&t would be similar, if not, my apologies, I am not an At&t customer.</p>
<p>No idea what Sprint will do.</p>