Mumong, Brunei

Mumong, Brunei: Submarine Cable Landing Point

Mumong is a residential suburb of Kuala Belait, the principal town of Belait District, on the coast of Brunei Darussalam. As a submarine cable landing point, it connects Brunei to an international network spanning the broader Asia-Pacific region. One submarine cable lands at Mumong, the Asia United Gateway East (AUG East), linking Brunei to a corridor that extends across Southeast Asia and into Northeast Asia.

The AUG East cable establishes intercontinental-scale connectivity from Mumong, reaching destinations as geographically diverse as Japan and South Korea to the north and Singapore and Indonesia to the south. This positions Mumong as a point of access to one of the more far-reaching cable systems currently planned for the region.

Cables Landing at Mumong, Brunei

Asia United Gateway East (AUG East) is a submarine cable system with a length of 8,900 km, currently in draft status with a projected ready-for-service (RFS) date of 2029. In addition to Mumong, the cable lands in Indonesia, Japan, Malaysia, Philippines, Singapore, and South Korea. Spanning multiple nations across Southeast Asia and Northeast Asia, AUG East forms a broad regional corridor connecting Brunei directly into a multi-country network of significant geographic reach.

Regional Context

Within Brunei, submarine cable infrastructure is distributed across three landing points: Tungku, Telisai, and Mumong. Tungku is the most cable-active landing point in the country, hosting three cables, while both Telisai and Mumong each host one cable. Mumong thus ranks alongside Telisai at the lower end of the national cable count, though the AUG East system it anchors extends to six other countries across the Asia-Pacific region.

Network Role

Mumong functions as a single-cable terminus within Brunei's submarine cable landscape. When AUG East enters service in 2029, the landing point will provide Brunei with a direct connection into a seven-country cable system spanning approximately 8,900 km, linking Southeast Asian nations including Malaysia, Indonesia, Singapore, and the Philippines with Northeast Asian endpoints in Japan and South Korea.

As one of three landing points serving Brunei's total of five submarine cables, Mumong contributes to the geographic distribution of the country's international cable connectivity across its coastline. Within the regional submarine cable graph, AUG East's broad country set means that Mumong, despite hosting a single cable, serves as an entry point into one of the more expansive multi-lateral cable systems planned for the western Pacific corridor.