"It is essential to have a roaming service in Myanmar due to the large number of Thais and foreign visitors through Thailand visiting the country," said Pratthana Leelapanang, senior vice-president for digital products and services.
The service is provided in collaboration with Myanma Posts and Telecommunications, the state-controlled sole provider of telecommunications service in Myanmar, following AIS's launch of roaming services for voice calls in 2011 and for text messaging last month.
Last year, 1.95 million Thais visited Myanmar, a sharp increase from 95,000 in 2012.
In the early stages, AIS targets 200,000 to 300,000 people will use its service in Myanmar.
AIS offers three packages at a price of six baht per megabyte _ 50 MB for one day of use, 150 MB for three days and 250 MB for five days. Postpaid customers can subscribe to the packages, while the service will be available for prepaid mobile users from Jan 14.
The company also has a system to alert users when quotas have nearly been used to prevent bill shock.
True Move, the third-largest mobile operator, is also in the stage of testing a roaming service in Myanmar.
Second-ranked Total Access Communication Plc has acknowledged the market potential in Myanmar.