Java Bali Cable System (JBCS)

Overview

The Java Bali Cable System (JBCS) is a domestic submarine cable connecting two landing points within Indonesia. As an intra-national system, it serves the corridor between the islands of Java and Bali, providing submarine connectivity within the Indonesian archipelago. The cable has been in service since 2013 and is owned by Triasmitra.

Route and Landings

Both landing points of the Java Bali Cable System are located in Indonesia. The cable lands at Candikusuma, on the island of Bali, and at Muncar, on the eastern tip of Java. These two terminals define the Java–Bali crossing that the system serves.

Ownership and Operators

The Java Bali Cable System is owned by Triasmitra, an Indonesian telecommunications infrastructure company. As the sole owner, Triasmitra holds full operational responsibility for the system.

Status and Timeline

The Java Bali Cable System became ready for service in 2013 and has been operational for approximately 13 years. The cable currently connects Candikusuma and Muncar and remains in service.

Regional Context

Indonesia is served by 40 submarine cables landing across 97 landing points, reflecting the country's status as a major hub for submarine cable infrastructure in Southeast Asia. The Java Bali Cable System is a short domestic link within this broader landscape, focused on inter-island connectivity between Java and Bali rather than long-haul international routing.

Several large international cable systems with Indonesian landings are expected to enter service between 2025 and 2029, including Bifrost, Echo, and Apricot in 2025, Hawaiki Nui 1 in 2027, Asia Connect Cable-1 (ACC-1) in 2028, and Asia United Gateway East (AUG East) in 2029. These systems are substantially longer international routes, whereas JBCS serves a distinct domestic purpose connecting two of Indonesia's most populous islands.

Strategic Role

By linking Candikusuma on Bali with Muncar on Java, the Java Bali Cable System provides a dedicated submarine path between two of Indonesia's most densely populated islands. This intra-national connection complements the wider web of international cables landing in Indonesia, addressing inter-island bandwidth demand on one of the country's most travelled corridors. Owned and operated by a single domestic entity, it represents the kind of focused, nationally oriented infrastructure that coexists alongside large transoceanic systems within Indonesia's cable ecosystem.