Philippine Domestic Submarine Cable Network (PDSCN)

Overview

The Philippine Domestic Submarine Cable Network (PDSCN) is a domestic submarine cable system operating entirely within the Philippines. Spanning approximately 2,500 kilometres, it connects 30 landing points across multiple Philippine islands, serving the intra-archipelago corridor that links Luzon, Visayas, and Mindanao. The system is designed to provide inter-island connectivity within one of the world's most geographically fragmented nations.

Route and Landings

All landing points are located within the Philippines. The cable reaches communities across the archipelago, including Baclayon, Bacolod, Boac, Boracay, Bulan, Cagayan de Oro, Cagdianao, Calatrava, Calbayog, Camiguin Island, Caticlan, Dipolog City, Ilijan, Iloilo City, Kinoguitan, Liloan, Liloy, Lucena, Maasin, Palanas, Palompon, Pasacao, Pinamalayan, Placer, Roxas City, San Carlos, Siargao Island, Surigao City, Tagbilaran, and Talisay.

Ownership and Operators

The PDSCN is jointly owned by Eastern Telecom, Globe Telecom, and Infinivan Inc. Globe Telecom is one of the Philippines' two dominant telecommunications providers and operates extensive fixed and mobile networks across the archipelago. Eastern Telecom is a long-established Philippine telecommunications carrier with a history in data and international services.

Status and Timeline

The PDSCN entered service in 2023, making it a recently commissioned addition to the Philippines' submarine cable infrastructure.

Regional Context

Unlike the international submarine cables that also land in the Philippines — such as EAC-C2C, the Asia-America Gateway (AAG) Cable System, JUPITER, APCN-2, Bifrost, and the planned Asia Connect Cable-1 — the PDSCN is not designed to carry international traffic. Those systems span tens of thousands of kilometres and connect the Philippines to regional and transoceanic destinations. The PDSCN, by contrast, addresses domestic inter-island connectivity, complementing international infrastructure by extending reach to communities within the archipelago itself.

Strategic Role

With 30 landing points distributed across Philippine island groups and a total length of 2,500 kilometres, the PDSCN provides submarine cable access to a broad range of island communities that might otherwise depend on satellite links or overloaded terrestrial alternatives. The concentration of landings across Visayas and Mindanao in particular reflects the geographic complexity of serving an archipelago where inter-island sea crossings are unavoidable. The participation of three distinct operators as co-owners enables shared infrastructure across competing and complementary service providers within the domestic market.