4 out of 5 submarine cables connecting Vietnam to the world have been damaged for as yet unknown reasons, seriously affecting the connection speed and reliability.
On January 30, an internet service provider (ISP) confirmed that Inter Asia (Intra Asia – IA) cable had been having problems since January 28. capacity from Vietnam to Singapore via IA.
Previously, the issues with AAE, AAG, APG submarine cable systems, which have been occurring since 2022 and early 2023, have not been fully addressed, making it more difficult for ISPs to ensure the quality of connections to their consumers.

Vietnam has six submarine cables and an overland system passing through China, namely SMW3, AAG, IA, APG, AAE-1, SJC2, ADC. However, of these, SJC2 and ADC have not yet been officially deployed. The only line still in operation is SMW3, an old cable line that is about to be liquidated.
According to the German data portal Statista, there are 69 million internet users in the country with a population of 96 million.
There are three cable landing sites in Vietnam and six submarine cable systems in operation connecting Vietnam, two new cables including SJC2 and ADC are under construction.
Cable landing stations in Vietnam
VNPT and Viettel are the dominant international submarine cable operators in Vietnam. Viettel has invested in AAG, TGN-IA, APG, AAE-1 and ADC, and is hosting the Vietnam cable landing station for AAE-1 with its US$50 million investment in the AAE-1 cable project.
VNPT Vung Tau Cable Landing Station:
- AG
- TGN-IA
- TVH (Tailand-Vietnam-Hong Kong)
VNPT Danang Cable Landing Station:
VNPT Quy Nhon Cable Landing Station: SJC2 (2022)
Viettel Vung Tau Cable Landing Station: AAE-1
Viettel Quy Nhon Cable Landing Station: ADC (2022)


