CAT Telecom
| CAT Tower, the CAT Telecom’s Headquarter, located by the Chao Phraya River, Bangrak District, Bangkok | |
| Native name | บริษัท กสท โทรคมนาคม จำกัด (มหาชน) | 
|---|---|
| Company type | State-owned | 
| Industry | Telecommunication | 
| Founded | 14 August 2003 | 
| Defunct | 6 January 2021 | 
| Successor | National Telecom Public Company Limited | 
| Headquarters | , Thailand | 
| Area served | Thailand | 
| Website | www | 
CAT Telecom Public Company Limited (Communication Authority of Thailand : การสื่อสารแห่งประเทศไทย) So, then as known as CAT Telecom Plc.
(Thai: บริษัท กสท โทรคมนาคม จำกัด (มหาชน)) is the state-owned company that runs Thailand’s international telecommunications infrastructure, including its international gateways, satellite, and submarine cable networks connections. Since 2021 CAT Telecom became the National Telecom Public Company Limited after merging with TOT Public Company Limited.