AT&T Wireless offers several ways of using your service internationally. With Unlimited &More data plans you get unlimited access to your wireless plan in Mexico and Canada. With AT&T International Day Pass you can use the data from your wireless plan to text, call, and connect to the internet when you travel. It works in over 100 countries. AT&T Passport extends this to more than 200 countries and allows for unlimited texting, up to 3GB of data, and affordable calls.
