Corse-Continent 4 (CC4)

Overview

Corse-Continent 4 (CC4) is a regional submarine cable system connecting mainland France to the island of Corsica. Spanning a total length of 190 kilometers, the cable was ready for service in 1992 and is owned and operated by Orange, a major telecommunications provider in France. CC4 plays a vital role in supporting reliable communication and digital infrastructure between the mainland and Corsica, facilitating internet access, enterprise connectivity, and other telecommunication services.

As part of France's domestic submarine cable network, CC4 provides essential connectivity to Corsica, an island with limited terrestrial infrastructure. This cable is a key component of the regional telecommunications system, ensuring that Corsica remains well-integrated with the mainland despite its geographical isolation.

Route and Landings

The Corse-Continent 4 cable connects Cannes, located on the southeastern coast of mainland France, to L’Île-Rousse, a picturesque town on the northern coast of Corsica. Cannes is a globally recognized city, famous for its annual film festival and vibrant economy, which includes tourism, luxury industries, and technology. Its strategic location on the Mediterranean coast makes it an ideal landing site for submarine cables serving the region.

On the other end, L’Île-Rousse serves as a critical landing point for CC4 on Corsica. Known for its scenic beauty and historical significance, the town plays an important role in Corsica’s local economy, which is heavily reliant on tourism and agriculture. The cable’s connection to L’Île-Rousse ensures that the island has robust links to mainland France, supporting economic activities and administrative functions. The route of CC4 traverses the Ligurian Sea, a segment of the Mediterranean, which is known for its relatively shallow waters, making it suitable for submarine cable installations.

Ownership and History

Corse-Continent 4 is wholly owned by Orange, a subsidiary of France Télécom S.A., which is one of Europe’s leading telecommunications providers. Orange has a strong presence in the Mediterranean region, offering services that cater to both residential and business customers. The company’s ownership of CC4 underscores its commitment to maintaining and expanding France’s domestic and regional telecommunications infrastructure.

The cable was commissioned in 1992, a period marked by significant advancements in submarine cable technology. Its establishment was part of broader efforts to enhance connectivity within France and ensure that Corsica, as an island territory, could access reliable telecommunications services. Over the decades, CC4 has remained an integral part of France’s domestic cable network, contributing to the seamless exchange of data and communication between Corsica and the mainland.

What Our Measurements Show

Our live monitoring of Corse-Continent 4 reveals that the cable operates across 198 measured corridors, delivering consistent performance. The best recorded round-trip time (RTT) is 0 milliseconds, indicating exceptional latency in optimal conditions. On average, the cable achieves an RTT of 132 milliseconds, which reflects its efficiency in handling data transmission between the two landing points.

The measurements highlight the cable’s reliability and capacity to support the demands of modern telecommunications. Its performance is crucial for ensuring uninterrupted communication and internet services for both residential users and businesses in Corsica and Cannes. The data underscores the importance of CC4 in maintaining robust connectivity within the Mediterranean region, where submarine cables serve as lifelines for islands and coastal communities.