Ixchel: a short submarine cable connecting Mexico's Caribbean coast
The Ixchel submarine cable is a 20-kilometer fiber-optic system linking
Isla de Cozumel and
Playa del Carmen, both located in Mexico's Quintana Roo state. Owned by Telmex, it has been in service since at least 2007, according to GeoCables records. Its primary purpose is to provide reliable connectivity between the mainland and the island, supporting telecommunications and internet services.
What stands out about Ixchel is its relatively short length compared to most submarine cables, which often span hundreds or thousands of kilometers. While its design capacity, fiber pair count, supplier, and technology specifics are not publicly disclosed, the cable plays an important role in connecting Cozumel, a popular tourist destination, to the broader telecommunications network of Mexico.
Quick facts
| Cable name | Ixchel |
| Length | 20 km |
| Ready for service | 2007 (GeoCables database) |
| Owners | Telmex |
| Status | In service |
| Design capacity | Not disclosed |
| Fiber pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing points | Isla de Cozumel (Mexico); Playa del Carmen (Mexico) |
| One-way latency floor | ≈ 0.1 ms |
| Round-trip latency floor | ≈ 0.2 ms |
Route
The Ixchel cable connects Isla de Cozumel, an island located off the eastern coast of Mexico's Yucatan Peninsula, to Playa del Carmen on the mainland. Cozumel is known for its vibrant tourism industry, particularly scuba diving and cruise ship visits, while Playa del Carmen is a growing urban center and gateway to the Riviera Maya. The cable runs entirely within Mexican territorial waters, making it a domestic system.
Why it was built and what it carries
Ixchel was built to ensure reliable communications between Cozumel and the mainland. As Cozumel is an island with a significant population and a heavy reliance on tourism, stable internet and telecommunication services are essential for local businesses, government operations, and residents. The cable likely supports a mix of voice, data, and internet traffic, though the specifics of its capacity and usage are not publicly disclosed.
History: what can be established
GeoCables records indicate that Ixchel was ready for service in 2007. No conflicting dates have been identified in publicly available industry sources, so this timeline appears consistent. Details about its construction, commissioning, and initial deployment are not readily accessible, nor are there public records of major upgrades or repairs since its launch.
Capacity and technology
The design capacity, fiber pair count, supplier, and technology used in Ixchel are not disclosed in public sources. Without operator documentation, it is impossible to state these parameters with certainty. Given its short length and domestic scope, it is reasonable to assume that Ixchel uses standard fiber-optic technology for submarine cables, but attributing specifics would be speculative.
Latency: the physics
The theoretical one-way latency for light propagation over Ixchel's 20-kilometer fiber segment is approximately 0.1 milliseconds, assuming light travels at 200,000 to 204,000 kilometers per second in fiber. This results in a theoretical round-trip time (RTT) of 0.2 milliseconds over the wet segment. However, real-world end-to-end latency is higher due to additional factors, including signal processing at terminals, routing delays, and the land-based network tails connecting the cable to broader systems. No live measurements for Ixchel's latency are currently available.
Redundancy: what happens if it breaks
If Ixchel were to experience a fault, redundancy would depend on alternative connectivity options for Cozumel. While specific submarine cable alternatives are not listed in the GeoCables database, Cozumel may rely on microwave links or other terrestrial technologies to maintain connectivity with the mainland. Repairing a short cable like Ixchel would typically involve locating the fault using standard industry methods such as underwater surveys and deploying specialized repair ships to restore service.
Bottom line
- Ixchel is a 20-kilometer submarine cable connecting Isla de Cozumel and Playa del Carmen in Mexico.
- Owned by Telmex, it has been in service since at least 2007.
- Design capacity, fiber pairs, supplier, and technology specifics are not publicly disclosed.
- Theoretical round-trip latency over the wet segment is approximately 0.2 milliseconds, but real-world latency is higher.
- Redundancy options for Cozumel in case of cable failure are not documented but likely include terrestrial technologies.