Cuba
Cuba's documented undersea connectivity rests on a single cable link, ALBA-1, leaving the island exposed to the capacity and resilience constraints that come with depending on one submarine route.
Connectivity at a glance
- Cable systems
- 1active
- Landing points
- 0
- Resilience score
- 9
Cable systems serving Cuba
| Cable | Status | Ready for service | Length | Design capacity |
|---|---|---|---|---|
| ALBA-1 | active | — | — | — |
Landing points
Landing point records for Cuba are being compiled.
Cuba and the Submarine Cable Network
Cuba occupies a position in the northwestern Caribbean that, on paper, places it within reach of one of the world's busier cable corridors. The Florida Strait separates the island from the United States mainland by fewer than 150 kilometres, and the broader Caribbean basin carries multiple major cable systems connecting North America, South America, and Europe. Yet Cuba's documented integration into that network is thin.
A single active cable — ALBA-1 — appears on the register as serving Cuba. The system links Cuba with Venezuela and, through that connection, provides a pathway to broader international capacity. Beyond that one route, no additional submarine cables serving Cuba are documented here at this time.
Capacity and Resilience
A single-cable dependency is among the more precarious positions any island nation can occupy in the global connectivity picture. Where countries served by multiple diverse cable systems can reroute traffic when a fault occurs, a nation relying on one link has no such fallback. Any outage on ALBA-1 — whether from a ship's anchor, a submarine landslide, or equipment failure — would have direct and immediate consequences for international bandwidth.
The capacity picture is similarly constrained. Multiple cables generally mean competitive pressure, diverse ownership, and incremental upgrades as demand grows. A single system, whatever its designed capacity, represents a ceiling that is difficult to raise without either upgrading the existing cable or landing an additional one.
Geography and Context
Cuba's geography does not explain its limited cable connectivity — the island sits close to well-served waters, and its coastline offers viable landing options. The factors shaping the cable map here are primarily political and commercial rather than physical. That context sits outside the scope of this register, which documents infrastructure rather than the conditions that produce it.
No landing point locations for ALBA-1 on Cuban territory are documented in this register yet. Work to confirm precise landing station data for Cuba is ongoing, and the record will be updated as verified information becomes available.
Register Status
The Coral Sea Cables register for Cuba reflects what is currently confirmed. One active cable is documented; landing point data is not yet recorded. Researchers, operators, or readers with additional verified information are encouraged to contribute through the site's submission process.