Will my cellphone work in Europe?
Your American cell phone won’t work in Europe as a phone unless you have a GSM phone (with a global chip/system installed) and an international roaming plan.
You must contact your wireless service provider and give them a specific description of where you’re going (list the countries) and what you want to do with the phone (calling to the U.S.; texting; internet). Also, it’s important to ask them up-front about the “plan” so you’ll know the exact costs of each service, without confusion. For more info about international plans, click here.