Advanced Info Service Public Company Limited operates as a telecommunications company primarily in Thailand. The company operates through three segments: Mobile Phone Services, Mobile Phone and Equipment Sales, and Datanet and Broadband Services. The company offers post and prepaid services; and on top and roaming services; digital marketing services; and cloud and it solutions; cloud & data center, business network solutions, 5g and IoT, communication solutions, and data analytic and marketing solutions; digital eservices; and Mpay, digital payment management system. It is also involved in operating as a service provider of call center, international telephone, cellular telephone network, telecommunication service operator and internet, broadcasting network and television broadcasting service several channel, digital platform, insurance broker, training, internet data center services, internet and distribute internet equipment, online advertising and being the outsourced contact center, mobile content, online advertising business, as well as operation in space, land and building services, and related facilities. In addition, the company engages in developing IT systems service provider of content aggregator and outsourcing service for billing and collection; software development, distribution and general software service; developing application and digital marketing; distributing handsets; and providing software supporting high speed internet service, Voice communication, broadband Internet data, and international telephone service. The company was founded in 1986 and is based in Bangkok, Thailand.