Meta is building one of the world’s biggest undersea cable networks—it’s just one piece of a growing seafloor empire spanning 6 continents

Meta is expanding its infrastructure in a place far removed from the data centers that typically dominate technology headlines: the seafloor.

The company is building one of the world’s biggest undersea cable networks, with the project extending across six continents. The scale of the effort places subsea infrastructure among the less visible but significant parts of Meta’s broader technology footprint.

A different infrastructure story

Meta’s undersea expansion comes as data center development faces growing local opposition. Communities have raised concerns involving electricity bills, water use and zoning disputes, issues that have increasingly shaped public discussion around new facilities.

Against that backdrop, the company’s activity beneath the ocean represents another dimension of infrastructure growth. While data centers remain the most visible part of the buildout, Meta is also investing in systems that stretch across international seafloors.

Why the network matters

The project highlights the geographic reach of Meta’s infrastructure strategy. A network spanning six continents is not confined to a single market or region, making the company’s physical technology footprint broader than its land-based facilities alone.

The available information does not provide details on the network’s cost, construction timeline or individual cable routes. What is clear is that Meta’s infrastructure expansion is taking place both in public view, through data center projects, and far less visibly beneath the ocean.