Vietnam Restores IA Undersea Cable, APG Repairs to Be Completed by April

The government plans to expand Vietnam’s undersea cable network to ensure a more resilient digital infrastructure.

The IA undersea cable was fully repaired by the end of February 2025. Meanwhile, three faults on two branches of the APG cable (S9 and S1.9) are expected to be fixed between March 15 and April 7.

Only the APG undersea cable remains affected

Speaking to VietNamNet on March 5, a representative from a Vietnamese Internet service provider (ISP) confirmed that the issue affecting the IA cable’s S1 branch, located 190 km from its landing station in Singapore, had been completely resolved.

The disruption occurred on December 26, 2024, and full capacity on the IA cable has now been restored.

As for the APG undersea cable, international partners have informed Vietnamese network operators about the repair schedule for issues on the S9 and S1.9 branches, which arose in early February 2025.

Specifically, the fault on the S9 branch, located 143 km from the APG’s Singapore landing station, is expected to be repaired in the second half of March.

Meanwhile, two faults on the branch connecting to Malaysia are scheduled for repair between March 28 and April 7.

This means that Vietnamese Internet users will need to wait another month before all international connections are fully restored.

Once completed, all six of Vietnam’s international undersea cable systems – AAG, APG, IA, AAE-1, SMW3, and ADC – will be back to normal operation.

Among these six international undersea cables, ADC is Vietnam’s newest and largest-capacity cable, boasting a bandwidth of 20 Tbps. Launched in December 2024, ADC has Viettel as one of its nine investors.

The system is expected to enhance Internet speeds and strengthen Vietnam’s international connectivity. However, ADC has yet to be officially put into commercial operation.

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