The Cable Map

The seven corridors

Where the cables bunch together, a single fault cuts many at once. These are the narrows of the data map, and they sit on top of the same waters as the shipping chokepoints. Click any corridor for the full brief.

The cuts

Recent damage to undersea cables, with the cause labelled as confirmed, disputed, or natural. The pattern since 2023 is anchors dragged across cables by ships tied to Russia and China, though intent is rarely proven in court.

Who owns them

The cables have changed hands. Where telecom consortia once built and shared them, the four American technology giants now own or lease a large and growing share of the capacity, around 70 percent by 2022, concentrated in a few very high-capacity systems. Most cables are still consortium-owned by count; the giants own the fattest pipes.

Almost every cable is built by one of four firms: SubCom in the United States, Alcatel Submarine Networks in France, NEC in Japan, and HMN Tech in China. The split is geopolitical. When a consortium favoured the cheaper Chinese bid for a major Asia-Europe cable in 2020, a US pressure campaign turned the members against it, and an American firm won the build. China has obstructed permits for Western-built cables in its own waters in turn.

The sharpest control point is the shore. A cable can be finished and paid for and still be blocked at its landing station by the country it lands in. US regulators forced the Hong Kong landing off a Google and Meta transpacific cable in 2020 over its Chinese-linked investor; the cable went ahead without that leg. The lever is used from both Washington and Beijing.

Why it matters

Financial messaging rides these cables. SWIFT runs no cables of its own; its traffic crosses oceans as leased capacity on the same commercial systems as ordinary internet data. So does the settlement that follows it. The concentration is the recurring failure: Matsu depends on two cables, Tonga once on a single one, and a single convergence point off West Africa took thirteen countries offline at once in 2024. A family or a company reads this beside the chokepoints and the custody map: the same narrows, the same money, now the wires that carry both. The Sovereign Family states the household version.