Sines, Portugal

Sines, Portugal is a submarine cable landing point in Portugal (coordinates 37.9572°, -8.8696°). It serves 4 submarine cable systems, making it a multi-cable landing site in Portugal's international connectivity infrastructure.

Sines is a town and a municipality in Portugal. The municipality, divided into two parishes, has around 14,214 inhabitants (2021) in an area of 203.30 km2 (78.49 sq mi). Sines holds an important oil refinery and several petrochemical industries. It is also a popular beach spot and the main fishing harbour of Alentejo region. Wikipedia

Connected submarine cables

Operators landing at Sines, Portugal

Cables landing at Sines, Portugal are operated by 3 distinct consortium partners and carriers, including EllaLink, Google, IP Telecom. Each cable is typically jointly owned by a consortium of tier-one carriers and hyperscale operators who share construction costs and capacity; the operator mix reflects both regional incumbents and global players with interest in the routes served by this landing point.

Connectivity profile

From Sines, Portugal, international traffic can reach 8 countries through 4 cable systems. Destinations include Bermuda, Brazil, Cape Verde, French Guiana, Mauritania, Morocco, Portugal, United States.

Monitoring status

No monitoring incidents were recorded on cables serving Sines, Portugal in the past 90 days — all connected systems remained within normal latency thresholds. Our monitoring network continuously samples latency from external probes to targets reachable via these cables.

About the cables

• New CAM Ring (2026) — New CAM Ring is a domestic submarine cable network within Portugal, connecting 6 coastal and island locations including Carcavelos, Funchal, Machico, São Miguel, Sines, and 1 more. The system provides essential telecommunications infrastructure for communities that would otherwise depend entirely on satellite or microwave links. Read more →
• Nuvem (2026) — Nuvem is the newest entry on our monitoring list. The 7,194 km submarine cable was designed by Google to cross the North Atlantic, and it does something uncommon among recent transatlantic systems: it lands in four places, not two. Read more →
• Olisipo (2026) — Olisipo is a submarine cable system operating within Portugal, with landing points at Carcavelos, Sines. It provides dedicated submarine fiber capacity between these locations, supporting telecommunications, internet access, and enterprise connectivity. Read more →
• EllaLink (2021) — On June 1, 2021, a signal left Sines, Portugal — a quiet fishing port on the Alentejo coast — and arrived in Fortaleza, Brazil, sixty-two milliseconds later. For the first time in the history of the internet, a European packet reached South America without touching North American soil. Read more →

Submarine cable data from TeleGeography. Geographic context from Wikipedia. Monitoring metrics updated continuously by GeoCables.