Sangata, Indonesia

How the Internet Reaches Sangata, Indonesia

Sangata is a coastal town in East Kalimantan province, on the eastern seaboard of the island of Borneo, Indonesia. As an Indonesian coastal location, it has direct access to submarine cable infrastructure, with international and inter-island internet traffic arriving via a single submarine cable that terminates at the town. Sangata is a single-cable terminus rather than a node along a multi-cable corridor, meaning all of its submarine-delivered connectivity flows through one route.

Indonesia's broader submarine cable network spans 40 cables landing across 97 points nationwide. Within that network, Sangata represents a smaller, dedicated terminus serving the East Kalimantan region through its one landed cable, the JaKa2LaDeMa.

The Cable Serving Sangata

The JaKa2LaDeMa cable — 1,700 km in length, ready for service in 2010 — connects Sangata to five other Indonesian landing points: Banjarmasin and Beculuk (both in Kalimantan), and Denpasar, Gianyar, and Ketapang further across the Indonesian archipelago. The cable's name reflects its route linking Java, Kalimantan, and other major islands. This is entirely a domestic Indonesian cable system, meaning it carries inter-island traffic between Indonesian locations rather than connecting Indonesia to foreign countries directly. International traffic reaching Sangata travels first through this cable to other Indonesian hubs, from which onward international cables handle the wider global routing.

Regional Context

Indonesia hosts 40 submarine cables landing across 97 points, with the country's first cable entering service in 2003 and an average cable length of 2,591 km across the network. Sangata is one of the smaller terminuses in this national picture, served by a single domestic cable. Major regional peers include Batam (15 cables), Jakarta (7 cables), and Tanjung Pakis (7 cables), which serve as the primary international gateways for the country. Sangata's single-cable connection reflects its position as a regional endpoint rather than a national hub.

What This Means for Connectivity

Because Sangata is served exclusively by the JaKa2LaDeMa cable, all submarine-delivered internet traffic to and from the town flows through this one route. An outage on this cable would directly affect every service dependent on it for inter-island connectivity. The cable reaches Banjarmasin, Beculuk, Denpasar, Gianyar, and Ketapang — all Indonesian locations — meaning the traffic it carries is fundamentally inter-island and domestic in nature, stitching Sangata into the broader Indonesian internet rather than connecting it directly to international networks.

Understanding Sangata's position — a single-cable domestic terminus on eastern Borneo — illustrates how Indonesia's vast archipelago relies on layered submarine cable infrastructure, with smaller regional endpoints feeding into larger multi-cable hubs that in turn handle international routing.