Thẻ trả trước TOT Prepaid Thái Lan
TOT was founded on 24 February 1954, corporatized from Telephone Organization of Thailand on 31 July 2002. TOT has laid a foundation for telecommunications system in Thailand for over 59 years. With its long-lasting experiences, TOT is ready to provide a complete range of telecommunications services to meet therequirements of all target groups to their utmost satisfactions.