Columbus-III Azores-Portugal

Overview of Columbus-III Azores-Portugal

The Columbus-III Azores-Portugal submarine cable is a telecommunications system connecting mainland Portugal to the Azores archipelago. Owned by Altice Portugal, the cable facilitates high-speed data transfer between the two regions, playing a crucial role in the country's digital infrastructure. Operational since 1999, it is part of a broader network that supports connectivity within Portugal and beyond.

Geography and Landing Points

The cable has two landing points:

• Carcavelos, Portugal: Situated on the mainland near Lisbon, this landing point serves as the primary connection for the cable to the mainland telecommunications network.
• Ponta Delgada, Portugal: Located on São Miguel Island in the Azores, this landing point connects the archipelago to the mainland, ensuring robust communication links for the island region.

Architecture and Specifications

The Columbus-III Azores-Portugal cable was commissioned in 1999, but specific technical details such as its length, fiber pairs, and total capacity are publicly undisclosed. Altice Portugal is the owner and operator of this system. While the cable's supplier and detailed architecture remain unknown, its operational status since 1999 highlights its reliability and importance.

Regional Importance

This cable serves as a critical link between mainland Portugal and the Azores, ensuring both regions maintain seamless communication. It provides redundancy for other systems connecting the islands, such as the Azores Fiber Optic System (AFOS), and complements cables like the Continente-Madeira and CAM Ring. The Columbus-III Azores-Portugal cable enhances route diversity and reduces the risk of communication failures due to cable outages.

Publicly Disclosed vs. Undisclosed Information

What is known:

• RFS: 1999
• Owner: Altice Portugal
• Landing points: Carcavelos and Ponta Delgada

What remains undisclosed:

• Exact length of the cable
• Number of fiber pairs
• Total capacity (in Tbps)
• Supplier and detailed technical architecture

Why Monitoring Matters

For GeoCables, monitoring the Columbus-III Azores-Portugal cable provides insights into the stability of Portugal's connectivity. Key aspects to observe include:

• BGP routing: Tracking shifts in routing paths can indicate disruptions or rerouting due to maintenance or outages.
• Latency: Monitoring latency between Carcavelos and Ponta Delgada can help detect performance degradation.
• Maritime activity: Observing vessel behavior near the cable's route can mitigate risks associated with anchor drops or fishing activities.
• Correlated events: Identifying patterns between cable degradation and regional internet performance can improve predictive maintenance strategies.

Conclusion

The Columbus-III Azores-Portugal submarine cable is a vital piece of Portugal's telecommunications infrastructure, linking the mainland to the Azores archipelago. While some technical details remain undisclosed, its role in regional connectivity is clear. For GeoCables, this cable represents an opportunity to enhance monitoring efforts, ensuring the reliability and security of Portugal's digital backbone.