Telxius is the infrastructure company of the Telefónica Group. It manages an international network of 87,000 kilometres of high capacity fiber optic submarine cables, including the two highest capacity systems in the world, MAREA and BRUSA, both already open for business. MAREA, a joint project with Microsoft and Facebook, is the highest-capacity submarine cable to ever cross the Atlantic. With its 11,000 km and cutting-edge technology, BRUSA links the United States and Brazil. SAM-1, PCCS, and UNISUR represent additional high capacity routes that link the United States and Latin America. Telxius has also over 16,700 telecommunications towers in six countries, featuring one of the most extensive tower catalogues in the world.