Biznet Nusantara Cable System-1 (BNCS-1)

Overview

The Biznet Nusantara Cable System-1 (BNCS-1) is a domestic submarine cable system operating entirely within Indonesia. Spanning 105 kilometres, it connects four landing points across the Indonesian archipelago and serves intra-Indonesian connectivity needs. The cable is owned and operated by Biznet, a private Indonesian network and internet services provider.

Route and Landings

BNCS-1 lands at four points within Indonesia: Anyer, Kalianda, Muntok, and Sungsang. These landings span western Indonesian islands and coastlines, linking communities and infrastructure across the region. No single routing order is implied by these termination points.

Ownership and Operators

BNCS-1 is wholly owned by Biznet. Biznet is an Indonesian telecommunications company providing internet, cable television, and data centre services primarily across Java and other Indonesian islands.

Status and Timeline

BNCS-1 entered service in 2024 and has been operational for approximately two years. It is currently in service, providing active connectivity between its four Indonesian landing points.

Regional Context

Indonesia is one of the most extensively served submarine cable markets in the region, with 40 submarine cables landing across 97 landing points. The average cable touching Indonesia spans approximately 2,591 kilometres, making BNCS-1, at 105 kilometres, a distinctly short-haul domestic system. At this length, it is longer than only 11 percent of the other cables serving the same corridor, reflecting its role as a localised intra-island connection rather than a long-distance international link.

The cables sharing the Indonesian corridor include several large intercontinental systems such as Bifrost, Echo, Apricot, Hawaiki Nui 1, Asia Connect Cable-1 (ACC-1), and Asia United Gateway East (AUG East), which range from approximately 8,900 to nearly 20,000 kilometres in length and are oriented toward international and trans-oceanic traffic. BNCS-1 occupies a different position within this landscape, focused on domestic Indonesian connectivity at a fraction of those distances.

Strategic Role

BNCS-1 supports direct submarine connectivity between four points in western Indonesia — Anyer, Kalianda, Muntok, and Sungsang — under single-operator ownership by Biznet. Its short length and domestic scope distinguish it from the international cables also landing in Indonesia, addressing localised routing needs within the archipelago that longer intercontinental systems are not designed to serve.