Total Access Communication PLC, operating under "dtac" brand, was founded in August 1989 to provide wireless telecommunication service in 800 Mhz and 1800 Mhz frequency bands in Thailand under a 27-year "Built-Transfer-Operate" concession granted by CAT Telecom Public Company Limited (formerly known as Communications Authority of Thailand-"CAT"). Total Access Communication Public Company Limited is a public company incorporated and domiciled in Thailand with two major shareholders who are Telenor Asia Pte Ltd., a company incorporated in Singapore and Thai Telco Holding Co., Ltd., a company incorporated in Thailand. The Company is principally engaged in the provision of wireless telecommunications services and the sale of handsets and accessories.