Total Access Communication Public Company Limited, together with its subsidiaries, primarily provides wireless telecommunications services in Thailand. The company operates in two segments, Mobile Telephone Service and Related Services; and Sales of Handsets and Starter Kits. It offers telecommunication service, including 5G, 4G, 3G, and 2G that allows customers to use voice services, as well as high speed internet service, domestic mobile phone service international roaming, long-distance phone service international direct dialing, and other additional services. It provides telecommunication services using 4G technology using 1800 MHz, 2100 MHz, and 700 MHz frequencies together with 2300 MHz frequencies. The company also provides asset management services; and telecommunication equipment lease and device services. In addition, it sells mobile phones, SIM cards, voucher cards, and supplementary equipment; and operates information systems and centralized database for the number portability services. Total Access Communication Public Company Limited was founded in 1989 and is based in Bangkok, Thailand. As of March 1, 2023, Total Access Communication Public Company Limited operates as a subsidiary of True Corporation Public Company Limited.