Will my iPhone 4 work in England?

I'm going overseas this summer and fall for studying, and was wondering if I can have a contract over there, keeping my same iPhone. My carrier is Verizon.

Then you can bring it to the UK and use it on a UK network using the AT&T international roaming service. This would be expensive though as I suspect the free minutes would not apply and you would be paying for all the calls. Data would also be charged by the local carrier and some services would not work (like Visual Voice mail) as they would not be provided by the networks in the UK.

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