Sofifi, Indonesia

Sofifi: Submarine Cable Landing Point

Sofifi is a town on the west coast of Halmahera island in eastern Indonesia, serving as the capital of North Maluku province. Its position on one of Indonesia's larger islands places it within the country's extensive archipelagic submarine cable network. Two submarine cables land at Sofifi, connecting the town to broader domestic connectivity infrastructure across the Indonesian archipelago.

Both cables landing at Sofifi are domestic in scope, linking Indonesian endpoints to one another rather than reaching international destinations. The SMPCS Packet-1 and the Palapa Ring Middle cable together provide Sofifi with dual submarine cable access, supporting inter-island connectivity within Indonesia. The Palapa Ring Middle cable in particular is part of the nationally significant Palapa Ring project designed to extend broadband connectivity across Indonesia's outer islands.

Cables Landing at Sofifi

SMPCS Packet-1 is a submarine cable with a length of 3,156 km that reached ready-for-service status in 2015. The cable connects multiple landing points within Indonesia, making it a domestic inter-island system. Sofifi is one of the endpoints on this cable, which links it into a broader network of Indonesian coastal and island communities.

Palapa Ring Middle is a submarine cable spanning 2,100 km, with a ready-for-service year of 2018. Like SMPCS Packet-1, it connects landing points entirely within Indonesia. The Palapa Ring Middle segment was developed as part of Indonesia's national Palapa Ring initiative, and its landing at Sofifi reflects the town's inclusion in that domestic connectivity expansion programme.

Regional Context

Within Indonesia's submarine cable landscape — which spans 70 cables across 139 landing points — Sofifi ranks in the top 85 percent of landing points by cable count, hosting 2 cables. This places it well behind major Indonesian hubs such as Batam (20 cables), Jakarta (9 cables), Tanjung Pakis (9 cables), and Manado (8 cables), as well as mid-tier nodes like Dumai (7 cables) and Makassar (6 cables). Sofifi's two-cable presence nonetheless distinguishes it from the many single-cable landing points distributed across the Indonesian archipelago.

Network Role

Sofifi functions as a domestic submarine cable terminus, with both of its cables — SMPCS Packet-1 and Palapa Ring Middle — connecting it exclusively to other points within Indonesia. The two cables together span a combined length of over 5,200 km and were delivered across a three-year window between 2015 and 2018, reflecting successive efforts to extend inter-island submarine connectivity to Halmahera. As a two-cable landing point, Sofifi benefits from a degree of redundancy uncommon among smaller nodes in the Indonesian network.

Within the Indonesian submarine cable graph, Sofifi represents the integration of a provincial capital on Halmahera into the country's domestic inter-island cable infrastructure, linking an eastern outer island into the same network fabric that serves larger urban centres across the archipelago.