Established and corporatized in 2021 by resulting from the merger of CAT Telecom and TOT Public Company Limited.

Later, on 18 December 2020, Puttipong Punnakanta, Minister of Digital Economy and Society, held a meeting with employees and state enterprise labor unions of both TOT and CAT Telecom to communicate the organization's drive to be in the same direction.

This included communicating accurate information to employees and/or asking questions about the merger to lead to the creation of a new organization.

at the Department of Business Development, Ministry of Commerce, and Puttipong Punnakanta was the chairman of the press conference on the official launch of NT PCL.

In addition, National Telecom has set a goal to compete with the private sector to become one of the top 3 telecommunication providers in Thailand.