Viettel has officially put the Asia Direct Cable (ADC) submarine fiber optic cable into operation in early April 2025, with its landing station located in Quy Nhon (the south central province of Binh Dinh).

With a maximum capacity of 50Tbps, ADC is the largest submarine cable system in Vietnam, surpassing the country's total international connectivity capacity before its activation by 125%.

The Military Industry and Telecoms Group (Viettel) holds full ownership of the cable branch connecting Vietnam, the landing station in Quy Nhon, and a segment of the main international trunk.

Spanning approximately 9,800 km, ADC links seven countries and territories: Vietnam, China, Hong Kong (China), Thailand, the Philippines, Singapore, and Japan.

Unlike Vietnam’s existing submarine fiber optic cables, ADC uniquely connects directly to all three major Asian internet hubs—Singapore, Hong Kong (China), and Japan—enhancing regional connectivity.

The entire ADC project represents a $290 million investment, backed by a consortium of nine leading telecommunications corporations: Viettel (Vietnam), Softbank (Japan), Tata (India), Singtel (Singapore), China Telecommunications Corporation, China Telecom Global, China Unicom (China), National Telecom (Thailand), and PLDT (the Philippines).