Total Access Communication Public Company Limited (DTAC) is a GSM mobile phone company in Thailand. It is the nation's third largest GSM phone company, after Advanced Info Service (AIS) and True Mobile.[2][3] DTAC is owned by Norwegian company Telenor both directly and indirectly, and both companies share the same logo.[4] As of 31 December 2011, DTAC had 23.2 million subscribers with a market share of subscribers at around 30 percent.[5] As of 2019, the company has 20.642 million mobile subscriptions and 3904 employees. It is listed on the Singapore Exchange and the Stock Exchange of Thailand