Trans Global Cable System (TGCS)

Overview

The Trans Global Cable System (TGCS) is a domestic submarine cable system operating entirely within Indonesia. Spanning approximately 1,200 kilometres, it connects seven landing points across the Indonesian archipelago, serving an intra-national corridor that links islands and coastal cities from Sumatra to Sulawesi. The cable is planned for readiness in 2026 and is owned by Trans Indonesia Supercorridor.

Route and Landings

All seven landing points of the Trans Global Cable System are located in Indonesia. The cable lands at Balikpapan, Batam, Ketapang, Makassar, Manado, Surabaya, and Tanjung Pakis. These locations span the major island groups of the archipelago, including Sumatra, Java, Kalimantan, and Sulawesi, reflecting the system's role in bridging geographically dispersed population and economic centres within a single country.

Ownership and Operators

The Trans Global Cable System is owned by Trans Indonesia Supercorridor, an Indonesian entity focused on developing domestic digital infrastructure through submarine connectivity.

Status and Timeline

The Trans Global Cable System is planned for readiness in 2026. At that point it will become operational as a domestic Indonesian cable system serving its seven landing points.

Regional Context

Indonesia is a landing territory for a number of large international cable systems active or under development in the broader Asia-Pacific region, including Bifrost, Echo, and Apricot, all with readiness dates around 2025, as well as longer-horizon systems such as Asia Connect Cable-1 and Asia United Gateway East. These are intercontinental systems of considerably greater length, ranging from roughly 8,900 kilometres to nearly 20,000 kilometres. The Trans Global Cable System, at 1,200 kilometres, occupies a distinctly different niche: it is a wholly domestic system designed to interconnect Indonesian landing points rather than provide cross-border or transoceanic reach.

Strategic Role

By connecting seven Indonesian cities and coastal hubs — including Batam in the west, Surabaya and Tanjung Pakis on Java, Ketapang and Balikpapan on Kalimantan, and Makassar and Manado in Sulawesi — the Trans Global Cable System provides submarine connectivity along domestic routes that would otherwise depend on terrestrial infrastructure or longer overland paths. Its relatively compact length and exclusively domestic character make it a complement to the international systems that also touch Indonesian shores, addressing intra-archipelago connectivity within the country's own network.