TEGOPA: Connecting the Canary Islands
The TEGOPA submarine cable is a regional fiber-optic system owned by Telefonica that connects three Canary Islands: Tenerife, La Gomera, and La Palma. With a recorded length of 222 km, it plays a role in inter-island connectivity, linking
Granadilla de Abona on Tenerife,
San Sebastian de la Gomera on La Gomera, and
Santa Cruz de La Palma on La Palma. The cable has been listed as in service since 1994, according to GeoCables data.
What makes TEGOPA noteworthy is its longevity and its role within a geographically isolated region. However, public information about its technical specifications, such as design capacity, fiber pairs, and supplier details, remains scarce. This lack of disclosure leaves questions about its current operational capabilities and technological upgrades over time.
Quick facts
| Cable name | TEGOPA |
| Length | 222 km |
| Ready-for-service year | 1994 (GeoCables database value) |
| Owner | Telefonica |
| Status | In service |
| Design capacity | Not disclosed |
| Fiber pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing points | Granadilla de Abona (Spain), San Sebastian de la Gomera (Spain), Santa Cruz de La Palma (Spain) |
🗺 Show TEGOPA on the interactive cable map
Route
TEGOPA connects three key landing points in the Canary Islands: Granadilla de Abona on Tenerife, San Sebastian de la Gomera on La Gomera, and Santa Cruz de La Palma on La Palma. These islands are part of Spain but are located off the northwest coast of Africa, making submarine cables essential for their telecommunications infrastructure. The cable’s route ensures inter-island connectivity within the archipelago, facilitating communication and data exchange between these locations.
Granadilla de Abona is a hub for submarine cables, also hosting
Africa Coast to Europe (ACE) and
Canalink. Similarly, San Sebastian de la Gomera connects to the
La Gomera-El Hierro cable, while Santa Cruz de La Palma is linked to Canalink and
Tenerife-La Palma. This network of cables creates redundancy and enhances resilience in the region’s telecommunications.
Why it was built and what it carries
TEGOPA was built to address the need for reliable telecommunications between the Canary Islands, which are separated by significant distances and oceanic barriers. As a regional cable, it likely carries a mix of voice, data, and internet traffic, supporting both residential and commercial users. While specific details about its design capacity and traffic types are not publicly disclosed, its role in inter-island connectivity is evident.
Given its 1994 ready-for-service date, TEGOPA was likely designed to meet the technological standards of the time, which may differ significantly from modern submarine cables. Whether it has undergone upgrades to accommodate higher data volumes or newer technologies remains unknown.
History: what can be established
GeoCables data records TEGOPA’s ready-for-service year as 1994. If industry sources suggest a different year, this discrepancy has not been surfaced in publicly available documentation. Possible explanations for such conflicts could include delays in operational certification, phased activation of landing points, or differences in how "ready-for-service" is defined.
Telefonica, as the owner, has a long history of operating submarine cables in Spain and internationally. However, specific historical milestones for TEGOPA, such as maintenance events or upgrades, are not documented in public sources.
Capacity and technology
Publicly available data does not disclose TEGOPA’s design capacity, fiber pair count, or supplier. Without operator documentation, it is impossible to state whether the cable has been upgraded to modern standards or remains in its original configuration. Given its age, it is plausible that the cable operates at lower capacities compared to newer systems in the region, such as Canalink or ACE.
Latency: the physics
Theoretical latency for TEGOPA’s wet segment is straightforward to calculate. Light propagation over 222 km of fiber results in a one-way latency floor of approximately 1.1 milliseconds, with a round-trip time (RTT) floor of 2.2 milliseconds. However, real-world latency is higher due to additional factors such as land tails, terminal equipment processing, and network routing.
No live latency measurements are currently available for TEGOPA, and attributing specific RTT values without direct data would be speculative.
Redundancy: what happens if it breaks
Redundancy within the Canary Islands is supported by other submarine cables. Granadilla de Abona hosts Africa Coast to Europe (ACE) and Canalink, providing alternative routes for international and regional traffic. San Sebastian de la Gomera connects to the La Gomera-El Hierro cable, while Santa Cruz de La Palma is linked to Canalink and Tenerife-La Palma. These cables can mitigate the impact of a TEGOPA outage, ensuring continued connectivity for the islands.
Repair logistics for submarine cables typically involve specialized cable ships equipped to locate faults, retrieve damaged sections, and perform repairs. Given the regional scope of TEGOPA, repair times may be shorter than for transoceanic cables, but this depends on the availability of repair vessels and the complexity of the fault.
Bottom line
- TEGOPA is a 222 km submarine cable connecting Tenerife, La Gomera, and La Palma in the Canary Islands.
- Owned by Telefonica, it has been in service since 1994, according to GeoCables data.
- Technical specifications such as design capacity, fiber pairs, and supplier are not publicly disclosed.
- Theoretical latency for the wet segment is approximately 2.2 ms RTT, but real-world latency is higher.
- Redundancy is supported by other cables in the region, such as ACE, Canalink, and Tenerife-La Palma.