AT&T today said some of its customers will soon be able to roam in Mexico and Canada at no extra charge. Customers who subscribe to AT&T's 15 GB Mobile Share plan can text, talk, and surf in Mexico as if they were at home in the U.S. Customers who subscribe to AT&T's Unlimited Mobile Share plan and AT&T TV service can talk, text, and surf in Mexico and Canada. Even though roaming does not cost extra, customers need to add the AT&T Roam North America feature each phone and tablet in their plans before traveling. AT&T said customers who consume more than 50% of their minutes, messages, or data in Mexico two or more billing periods in a row may lose roaming access. People who surpass 22 GB of LTE data in a given billing period will be throttled. The company said other fees and restrictions apply, but did not spell them all out. The AT&T Roam North American feature will be available to regular and business customers starting May 20.


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