Submarine Cable Count Reaches 709 Systems Worldwide
TeleGeography's latest tracking shows 607 active submarine cable systems globally, with 102 more planned, bringing the total to 709. The number of in-service systems is the highest in two decades, driven by investments in major routes and island connections. The firm excludes power, research, and private government cables from its count.
TeleGeography's tally distinguishes between cable systems and the physical segments composing them. Over half of tracked systems have multiple branches or segments, as seen in the trans-Atlantic route: 14 systems but 18 crossing segments. Apollo, for example, uses two parallel paths linking the U.S., France, and the U.K. The count excludes power, research, and private government lines.
The current 607 active systems mark a two-decade peak, with 102 more planned. Growth stems from investment in major routes and island connections. TeleGeography removes retired cables from its map and offers deeper data through its Transport Networks Research Service, which forecasts bandwidth supply, demand, and pricing.
The expansion of submarine cable systems could bolster global internet resilience and capacity, potentially lowering costs for businesses and consumers who rely on cross-border data flows. Improved connections to small islands may enhance digital inclusion and economic opportunities there. However, the focus on major routes might leave some remote areas with less investment, possibly widening connectivity gaps. The tracking data itself helps telecom firms forecast demand and pricing, which could influence service affordability worldwide.