Dubrovnik, Croatia

Dubrovnik, Croatia: Submarine Cable Landing Point

Dubrovnik is a city in southern Dalmatia, Croatia, situated along the Adriatic Sea. Historically known as Ragusa, it serves today as a seaport and the administrative centre of the Dubrovnik-Neretva County. In addition to its role as a prominent Mediterranean port, Dubrovnik functions as one of Croatia's two submarine cable landing points, connecting the country to the broader Adriatic and eastern Mediterranean cable network.

One submarine cable lands at Dubrovnik: Adria-1, a regional system that links Croatia with Albania and Greece. This cable enables connectivity across the eastern Adriatic corridor, spanning three countries along the Adriatic and Ionian coasts. The Adria-1 system positions Dubrovnik as a node within a regional rather than intercontinental framework, connecting neighbouring Balkan and southeastern European coastal states.

Cables Landing at Dubrovnik, Croatia

Adria-1 is a submarine cable system with a total length of 440 kilometres, which entered service in 1996 as a draft-status system. In addition to its landing at Dubrovnik in Croatia, Adria-1 connects to landing points in Albania and Greece. The cable forms a regional Adriatic link across three countries, extending from the Croatian coast southward along the eastern Adriatic and into Greek waters. No capacity or fiber pair specifications are available for this system.

Regional Context

Croatia is served by two submarine cable landing points: Dubrovnik in the south and Umag in the north. Each hosts a single cable, meaning both landing points carry equivalent weight within the national submarine cable infrastructure. Dubrovnik's Adria-1 connection orients Croatia's southern coastal access toward Albania and Greece, while Umag provides the country's second independent submarine cable access point.

Network Role

Dubrovnik operates as a single-cable terminus within the Adria-1 system, rather than a multi-cable hub. The Adria-1 cable creates a direct regional link among Croatia, Albania, and Greece along the eastern Adriatic and Ionian coastlines, enabling submarine-based connectivity between these three states through a relatively short 440-kilometre system. The cable's 1996 ready-for-service date makes it one of the earlier submarine cable deployments in this corridor.

Within the broader regional submarine cable graph, Dubrovnik represents one of only two points at which Croatia connects to international submarine cable infrastructure. Its singular cable landing underscores the relatively modest scale of Croatia's submarine cable footprint, while the Adria-1 system itself provides a direct physical link between the southern Croatian coast and two of its Adriatic and Mediterranean neighbours.