Advanced Info Service Public Company Limited operates as a telecommunications and technology 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, and international calls and roaming services; digital e services; and Mpay, a payment solution. It also provides high-speed internet broadband services under the AIS Fibre and 3BB brands to consumers and businesses; and technologies and solutions services, including 5G and IoT, cloud and data center, communication, data analytic and AI, and business network solutions under the AIS Business brand to enterprise customers, SMEs, and large enterprises. In addition, the company operates as a service provider of call center, cellular telephone, electronic payment, and cash card; network operator; broadcasting network and television broadcasting service channels; digital platform; online advertising and outsourced contact center; mobile contents, application, and digital marketing; telecommunications, fixed-line, and data communication network; insurance broker; training; and telecommunication service operator and internet, as well as operates space, land, building, and related facilities. Further, it distributes handset and internet equipment; offers internet data center and international telephone services; develops IT systems service provider of content aggregator and outsourcing service for billing and collection; provides internet and online domain name; and develops, distributes, and services software. The company was founded in 1986 and is based in Bangkok, Thailand.