Viettel Telecom

Viettel Telecommunications Corporation (Tổng Công ty Viễn thông Viettel), doing business as Viettel Telecom (VTT) or simply Viettel, is a major Vietnamese telecommunications enterprise and the core division of Viettel Military Industry and Telecoms Group. Established on April 5, 2007, it is the telecommunications carrier with the largest market share in Vietnam.

History
On June 1, 1989, the Military Telecommunications Corporation (Viettel) was established under its original name, the Electronic and Information Equipment Corporation. In 1995, the Electronic and Information Equipment Corporation was renamed the Military Telecommunications Corporation, becoming the second telecommunications service provider in Vietnam.

In 2000, Viettel was granted a license to pilot a long-distance telephone service using VoIP technology on the Hanoi - Ho Chi Minh City route under the 178 brand.

In 2003, Viettel expanded into the basic telecommunications sector, investing in infrastructure and installing switchboards, officially launching fixed telephone services into its business operations on the market. On October 15, 2004, Viettel Telecom launched its GSM mobile phone network with the prefix 098, becoming the fourth mobile network operator in Vietnam. Viettel's mobile network has extensive coverage throughout Vietnam, utilizing 2.5G technology.

On March 2, 2005, in accordance with a decision by the Prime Minister of Vietnam, the Military Telecommunications Corporation was established. On April 5, 2007, Viettel Telecom, a subsidiary of the Viettel Military Telecommunications Corporation, was established through the merger of Viettel Internet, Viettel Fixed Telephone, and Viettel Mobile.