America Movil Submarine Cable System-1 (AMX-1)

Overview

The America Móvil Submarine Cable System-1, known as AMX-1, is a privately owned undersea cable that entered service in 2014. It is wholly owned by América Móvil, the Mexican telecommunications giant with an extensive footprint across Latin America and the Caribbean. That single-owner structure distinguishes AMX-1 from the consortium-built systems more common in the region — the cable exists primarily to serve the network needs of its owner rather than as a shared carrier platform.

Route and Coverage

AMX-1 connects eight countries: the United States, Mexico, Guatemala, Colombia, Brazil, the Dominican Republic, Dominica, and Puerto Rico. That span takes in the Gulf of Mexico, the Caribbean basin, and reaches down to South America's Atlantic coast, threading together markets where América Móvil operates under brands including Claro and Telcel. The system effectively stitches the company's national networks into a single integrated backbone, reducing reliance on third-party capacity for inter-country traffic.

The inclusion of smaller Caribbean territories such as Dominica alongside major markets like Brazil and Mexico reflects América Móvil's broad regional retail presence rather than pure traffic volume considerations.

Ownership and Build Context

Details on the construction contractor and the system's physical length and design capacity have not been publicly documented. What is clear is that the decision to build a proprietary cable rather than purchase capacity on existing systems gave América Móvil direct control over a critical layer of its infrastructure — an approach that large carriers with dense regional operations have increasingly favoured.

Regional Significance

The Caribbean and Gulf of Mexico corridor is served by a number of overlapping cable systems, but AMX-1 occupies a particular niche as a vertically integrated carrier cable. Its route coverage across Central America, the Caribbean arc, and into South America gives América Móvil redundancy and capacity management options that would otherwise depend on competitors or neutral wholesalers.