A new international plan from AT&T is offering iPhone customers more room to roam. For $59.99 per month, iPhone users get 50 MB of data to browse the web, check e-mail and access other information in more than 29 countries. The locations include Canada, China, Mexico, and areas throughout Europe and Asia.

AT&T calls the concept the Data Global Plan, which is in addition to the domestic voice and data iPhone plan they purchase during iPhone activation. The Data Global Plan enables international voice and data roaming, as well as international long distance dialing from the United States at standard rates.

The plan requires customers to first purchase a domestic voice and data plan for the iPhone and is not available as a stand-alone offer. Normal eligibility requirements for international plans apply. Should customers exceed the 50MB bucket in the 29 countries where the plan applies, they will pay $.005/KB. Outside those countries, consumers will simply pay for their data usage by the kilobyte, at rates starting as low as $.010/KB.

AT&T also offers a 20MB Data Global Plan for iPhone customers for $24.99 a month. The 20MB bucket applies to usage within the same 29 countries, with overage rated at $.005/KB. Outside the 29 designated countries, the data usage rate is $.0195/KB.

AT&T advises international travelers to remember to check their wireless options as a part of their pre-trip planning process.

Travelers can visit http://www.att.com/wirelessinternational to see whether service is available in the countries to which they are going. Travelers can go to http://www.att.com/travelguide to determine whether their wireless device has the frequency and wireless technology needed at their travel destination.