Qatar-U.A.E. Submarine Cable System: A regional link between Qatar and the United Arab Emirates
The Qatar-U.A.E. Submarine Cable System is a submarine telecommunications cable connecting Qatar and the United Arab Emirates (U.A.E.), with landing points in
Doha,
Halul Island,
Abu Dhabi, and
Das Island. Spanning approximately 100 km, it serves as a regional link facilitating data exchange between the two countries. Officially recorded as ready for service in 2004, the cable is jointly owned by Ooredoo and e&, two major telecom operators in the region.
What makes this cable particularly noteworthy is the scarcity of publicly disclosed technical details, including its design capacity, fiber pair count, and supplier. While its relatively short length suggests it primarily serves regional traffic, the absence of detailed documentation leaves room for speculation about its full capabilities and operational role in the Gulf's broader telecommunications network.
Quick facts
| Name | Qatar-U.A.E. Submarine Cable System |
| Length | 100 km |
| Ready for Service | 2004 (GeoCables database value; no conflicting dates surfaced) |
| Owners | Ooredoo, e& |
| Status | In service |
| Design Capacity | Not disclosed |
| Fiber Pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing Points | Abu Dhabi, Das Island (U.A.E.); Doha, Halul Island (Qatar) |
🗺 Show Qatar-U.A.E. Submarine Cable System on the interactive cable map
Route
The Qatar-U.A.E. Submarine Cable System connects four landing points: Abu Dhabi and Das Island in the U.A.E., and Doha and Halul Island in Qatar. Abu Dhabi serves as a major hub for submarine cables in the region, hosting other systems such as
2Africa,
Fibre in Gulf (FIG), and
SeaMeWe-6. Similarly, Doha is a landing site for several key cables, including 2Africa,
Asia Africa Europe-1 (AAE-1),
FALCON,
Fiber Optic Gulf (FOG), and SeaMeWe-6. The cable's relatively short length suggests it primarily facilitates inter-country connectivity rather than serving as a transcontinental route.
Why it was built and what it carries
The Qatar-U.A.E. Submarine Cable System was likely built to enhance direct connectivity between Qatar and the U.A.E., two Gulf countries with significant economic and geopolitical ties. By providing a dedicated link, the cable reduces reliance on longer, more congested regional routes and offers improved latency for data exchange. While specific data about its traffic types or capacity is unavailable, it is reasonable to assume that the cable supports a mix of internet, voice, and enterprise communications.
History: what can be established
The GeoCables database records the cable as ready for service in 2004, and no conflicting dates have been surfaced in industry sources. The joint ownership by Ooredoo and e& aligns with their roles as leading telecom operators in Qatar and the U.A.E., respectively. Publicly available information does not provide details about the cable's construction process, supplier, or any upgrades since its commissioning. Its continued status as "in service" indicates that it remains operational and relevant to regional connectivity.
Capacity and technology
No public records disclose the design capacity, fiber pair count, or the specific technology used in the Qatar-U.A.E. Submarine Cable System. Without operator documentation, attributing these details would be speculative. Given the cable's age, it is plausible that its initial capacity was modest by modern standards, but it may have undergone upgrades to support higher bandwidths and more advanced technologies. However, this cannot be confirmed without further information.
Latency: the physics
The computed one-way light propagation latency for the cable's 100 km wet segment is approximately 0.5 ms, yielding a theoretical round-trip time (RTT) floor of 1.0 ms. Real-world end-to-end RTTs are higher due to additional latency introduced by land tails, terminal equipment, and routing.
Live measurements from remote probes show a minimum RTT of 4.5 ms and an average of 82.5 ms for Abu Dhabi to Doha, and a minimum RTT of 0.6 ms and an average of 103.6 ms for Doha to Abu Dhabi. The 0.6 ms minimum is below the physical floor of 1.0 ms and is therefore a measurement artifact, likely caused by rate-limited ICMP replies from intermediate routers. It should not be interpreted as the cable's actual performance.
Redundancy: what happens if it breaks
In the event of a failure, traffic carried by the Qatar-U.A.E. Submarine Cable System could be rerouted via alternative cables landing in Abu Dhabi and Doha. Abu Dhabi hosts 2Africa, Fibre in Gulf (FIG), and SeaMeWe-6, while Doha is connected to 2Africa, Asia Africa Europe-1 (AAE-1), FALCON, Fiber Optic Gulf (FOG), and SeaMeWe-6. These systems provide redundancy for regional and international connectivity. Repairs to submarine cables typically involve specialized cable-laying ships equipped to locate and fix faults, a process that can take days to weeks depending on the nature of the damage and weather conditions.
Bottom line
- The Qatar-U.A.E. Submarine Cable System spans 100 km and connects Qatar to the U.A.E. via four landing points: Abu Dhabi, Das Island, Doha, and Halul Island.
- It was recorded as ready for service in 2004, with no conflicting dates identified.
- Ownership is shared between Ooredoo and e&.
- Publicly available data does not disclose its design capacity, fiber pair count, supplier, or technology.
- Computed latency for the wet segment is approximately 1.0 ms RTT, but real-world measurements are higher due to additional network factors.
- Redundancy is provided by other cables landing in Abu Dhabi and Doha, including 2Africa, SeaMeWe-6, and others.