Free tool · China & network
Submarine cable route finder
Choose two places and see the public cables that connect them, the indicative distance and latency floor, and whether the options share a landing station or a corridor.
Country or landing station. Results update as you type.
Country or landing station.
8 route options · 0 direct · 8 one change · Best: TIKAL-AMX3 + New Cross Pacific (NCP) Cable System · 15,553 km · ≈ 152.5 ms round trip
Public submarine cable information for reference. It does not indicate where unicomam.com offers service; route availability is confirmed in a quote.
Route options
Direct cables first, then routes with one change. Ranked by the indicative distance.
Direct 0
One cable lands at both ends.
One change 8
Two cables meet in a shared landing country.
No route options for this pair. Try another country or landing station. The public data may not carry a cable between every pair.
Compare routes
Choose two or three options to compare them side by side.
Public submarine cable information (snapshot 2026-10-18)
How this works and its limits
The dataset is a public snapshot of 536 submarine cables and 1,503 landing stations, dated 18 October 2026. For each cable we keep the name, ready-for-service year, published length and landing coordinates. The dataset's owners field is removed before publication.
A direct option is one cable with landing stations in both places. A one-change option is two cables that meet in a shared landing country. Distance uses the published cable length when it exists; otherwise it is the great-circle distance between the two named stations multiplied by 1.25. The latency floor is distance divided by 204 km per millisecond one way, and twice that for the round trip.
Diversity badges compare the landing stations each option names and four corridors inferred from landing geography: the Red Sea and Suez, the Strait of Malacca, the Luzon Strait and the English Channel. They are indicative. The dataset carries no cable geometry, so the map draws straight connectors between stations, not the cable's actual path.
Public submarine cable information for reference. It does not indicate where unicomam.com offers service; route availability is confirmed in a quote.
Data sources and licences
Operator names, brands and codes shown here are public reference data compiled from national regulators and other public sources. Their appearance does not indicate any partnership, endorsement, agreement or connectivity between unicomam.com and the named operators. All trademarks belong to their owners. Data is provided “as is” with no warranty; verify against the official source before relying on it for routing, billing or compliance decisions.
Regulatory information is for reference only and is not legal advice; check the regulator link and the “last verified” date.
How traffic reaches China by submarine cable
A submarine cable is a physical path between landing stations. Each end is a beach landing where the cable meets terrestrial fiber, power and a carrier's equipment. The cable itself is shared by several operators, and a landing station can serve many cables. That is why a route is better described by the stations it uses than by the cable's name alone.
Traffic from Latin America to China rarely crosses the Pacific on one cable. A typical path goes from a landing station in Mexico, Brazil or Chile to a transit country on the way, changes there to a trans-Pacific cable, and lands in China or Hong Kong. The change happens in a country, not necessarily in the same building: two cables can meet in a shared landing country and still use different stations. The route finder calls this one change and names the country.
Distance sets a floor on latency. Light in fiber covers about 204 kilometers per millisecond, so a 20,000 kilometer path cannot have a one-way delay below about 98 milliseconds, whatever the equipment does. Real routes are longer than the great circle and add switching and queueing, so the floor is a planning number, not a measurement. The tool uses the published cable length when it exists because that length is usually longer than the straight line between the two stations.
Route diversity is the second part of the decision. Two options that share a landing station fail together when that station or its power does. Two options that both pass the Red Sea or the Strait of Malacca share a corridor risk even when their cables are different. The comparison table and the diverse-pair helper look for options that avoid both a shared station and a shared corridor, and they say so when the public data offers no such pair.
The map is an aid. It marks the stations named by the selected options and joins them with straight lines so the geography is visible. Those lines are not the cable path. Use the route cards for the cables, stations, distance basis, ready-for-service year and corridor badges, then confirm the route you need in a quote.