Muntok, Indonesia

Muntok, Indonesia: Submarine Cable Landing Point

Muntok, also known as Mentok, is a town located in the Bangka-Belitung province of Indonesia, situated on the island of Sumatra. As the capital of West Bangka Regency, Muntok sits on the western tip of the region and serves as a landing point for three domestic submarine cables. All three cables connect points within Indonesia, making Muntok a node within the country's internal submarine cable network rather than a gateway to international destinations.

The three cables landing at Muntok — the Biznet Nusantara Cable System-1 (BNCS-1), the Sumatera Bangka Cable System (SBCS), and PASULI — collectively span relatively short distances, consistent with inter-island connectivity across the waters surrounding the Bangka-Belitung archipelago. The corridor these cables enable is regional in character, linking Indonesian islands and communities across the local maritime geography. Across Indonesia's broader submarine cable landscape, which encompasses 70 cables landing at 139 points nationwide, Muntok's three-cable profile places it in the top 93 percent of Indonesian landing points by cable count.

Cables Landing at Muntok

Biznet Nusantara Cable System-1 (BNCS-1) is a domestic submarine cable with a length of 105 km. It reached ready-for-service (RFS) status in 2024 and connects landing points entirely within Indonesia. At 105 km, it is the longest of the three cables terminating at Muntok, providing inter-island connectivity on a subregional scale.

Sumatera Bangka Cable System (SBCS) spans 57 km and has been in service since 2014, making it the oldest cable at this landing point. Like the other cables here, it connects locations within Indonesia, forming part of the domestic submarine cable infrastructure serving the Bangka-Belitung region and adjacent areas of Sumatra.

PASULI is a 40 km domestic submarine cable that entered service in 2019. It represents the shortest cable landing at Muntok and, as with the other two systems, its endpoints are located entirely within Indonesia. Together with SBCS and BNCS-1, PASULI contributes to the layered domestic connectivity available at this landing point.

Regional Context

Within Indonesia's submarine cable landscape, Muntok is a modest landing point compared to the country's busiest hubs. Major centers such as Batam (20 cables), Jakarta (9 cables), and Tanjung Pakis (9 cables) host significantly more systems, while Muntok's three cables reflect its role as a locally focused node rather than a national interchange. Nevertheless, within a country that spans 139 cable landing points, Muntok's three-cable footprint places it meaningfully within the upper tier of domestic landing points by cable count.

Network Role

Muntok functions as a multi-cable domestic terminus, hosting three submarine systems that collectively span the short maritime distances characteristic of inter-island connectivity in the Bangka-Belitung area. All three cables — BNCS-1, SBCS, and PASULI — operate entirely within Indonesian territory, meaning the landing point serves intra-national rather than international traffic. The range of RFS years, from 2014 through 2024, indicates that Muntok has been progressively integrated into domestic cable development over a decade.

In the broader map of Indonesia's submarine cable graph, Muntok represents the kind of smaller, domestically oriented landing point that collectively binds together the country's vast archipelago. Its position at the tip of the Bangka-Belitung island group, served by cables of 40 to 105 km, illustrates how short-haul submarine systems fill connectivity gaps between Indonesian islands that are not served by the longer international cables concentrated at larger hubs.