Advanced Info Service Public Company Limited, along with its associated entities, primarily delivers mobile telecommunications, high-speed internet, and various digital solutions within Thailand. The company structures its extensive operations into three core divisions: mobile telephony offerings, the distribution and retail of mobile devices and related equipment, and comprehensive data network and broadband solutions. A significant part of its infrastructure involves managing and operating cellular phone networks across a broad spectrum of frequencies, including 26 GHz, 700 MHz, 900 MHz, 1800 MHz, 2100 MHz, and 2600 MHz.