Mobile Telco in Thailand

Advanced Info Service
Advanced Info Service PCL is Thailand's largest GSM mobile phone operator with 28.8 million customers as of February 2010. AIS was founded in April 24, 1986 and acquiring Shinawatra Paging in June 1992, the highly profitable company is controlled by the Shin Corporation, headed by Temasek Holdings, a Singapore government owned agency. AIS is listed on the Stock Exchange of Thailand on November 5, 1991 (1991-11-05). Singapore Telecommunications holds a 19.15% stake in the company.

Temasek bought AIS and Shin from the ousted Former Prime Minister Thaksin Shinawatra in early 2006.
http://www.ais.co.th/

Total Access Communication Public Company Limited
Total Access Communication Public Company Limited (DTAC) is the second largest GSM mobile phone provider in Thailand (after AIS). Dtac is owned by Telenor both directly and indirectly. As of 31 December 2009, dtac had 19.7 million subscribers with the market share of subscriber at around 30%.

As of 23 June 2010, the Company's registered capital was Baht 4,744,161,260 of which Baht 4,735,622,000 was paid-up capital and divided into 2,367,811,000 ordinary shares with a par value of Baht 2.

Dtac has won the Best Mobile Operator of Thailand award for three consecutive years (2005–2007) from Asian MobileNews Awards 2007, organized by Asian MobileNews Magazine.

DTAC claims to have the second widest coverage nationwide, compared to its main rival AIS, with 8,300 base stations intstalled as of 2008 on the 800 Mhz and 1800 Mhz bands. As of 2010 DTAC is offering both GPRS and EDGE services on its postpaid and prepaid brands DTAC Happy. Unlimited internet access stands at a price of 999 Baht per month. DTAC has international roaming agreements with 147 countries.
http://www.dtac.co.th/

True Corporation Public Company Limited
True Corporation Public Company Limited (TRUE) is a communication conglomerate in Thailand and a subsidiary of the Charoen Pokphand group. True controls Thailand's largest cable TV provider True Visions, its largest ISP True Internet and its third-largest mobile operator True Move.

True Corporation was established in 1990 as TelecomAsia. The firm had a strategic partnership with Verizon. The company was listed on the Stock Exchange of Thailand on 1993 (1993-12}22). In 2001, TelecomAsia set up a mobile phone subsidiary with Orange SA. Orange sold off its stake in the venture in 2003 but the Orange brand was still used until 2006.

In an effort to converge all its existing telecommunications related business into a single brand, the company renamed itself True Corporation in 2004 and streamlined its operations with subsidiaries AsiaInfonet (renamed True Internet) and Orange (renamed True Move in 2006) amongst others.It operates fixed-line (as a concessionaire of TOT Plc), wireless, Cable TV, IPTV and Broadband services amongst others.

The company has aggressively pushed itself as an Internet service provider, a broadband and ADSL network. With more than 1 million subscribers, it is now Thailand's largest ISP.

In 2005, True took a higher stake in UBC, Thailand's largest cable television provider, and renamed the network UBC-True. On January 24th 2007 UBC-True was renamed True Visions.

Today, True Corporation Public Company Limited, has pushed communication businesses into one brand, "True", promoting the companies in the form of True Convergence.
http://www2.truecorp.co.th/

CAT Telecom Public Company Limited
under the corporate brand "CAT", is the Thai state-owned telecommunications company that owns Thailand’s international telecommunications infrastructure including its international gateways, satellite and submarine cable networks connections. Until recently, CAT had a monopoly on international telephony and CDMA mobile telephony.

CAT partners with sister state-enterprise TOT to provide a GSM mobile service namely ThaiMobile (sold back to TOT in 2008)and with Hutchison namely Hutch to provide a CDMA CDMA2000 1X mobile service in 25 central provinces, while operates its own CDMA2000 1xEV-DO in 51 other regional provinces.

CAT also provides data communications and applications services, e.g., Leased Line, Fiber-to-the-Premises (FTTx), Gigabit Ethernet, xDSL, Live TV Broadcast, e-Commerce, e-Auction, e-Security, etc. Over half of its revenue is from revenue sharing of its mobile concessionaires namely Total Access Communication (TAC, dtac Brand), True Move (TM), and Digital Phone Company (DPC, GSM1800 Brand) over the lives of their respective concession contracts, i.e., until 2018, 2013, and 2013, respectively.

Corporatized on August 14, 2003, CAT Telecom used to be known as the Communications Authority of Thailand.
http://www.cattelecom.com/