This excerpt taken from the VZ 10-K filed Feb 26, 2010.
We offer a variety of international wireless services targeted to the needs of our customers ranging from our multinational business accounts to our consumer customers who occasionally travel outside of the U.S. Through our roaming arrangements with certain wireless service providers outside of the U.S., customers enrolled in our international dialing service can use any of our phones in more than 40 international destinations that provide CDMA wireless service, with data services available in more than 20 such destinations. Through our Global Phone Service, our customers that use our phones that have GSM or UMTS capabilities, such as the Blackberry Tour and Storm2, can access voice service in more than 220 destinations worldwide. With our GlobalEmail service, customers with select global phones can access their e-mail accounts in more than 195 destinations worldwide. In addition, our GlobalAccess service enables our customers to access the Internet on their laptop computers equipped with our GSM PC cards and on our netbooks equipped with global SIM cards in more than 195 destinations, 85 of which offer data access at 3G speeds.