Thierry Papin, CEO of TOTEM France, announces the start of TOTEM's 5G deployment in the tunnels of the future “Line 15 South” of the Grand Paris Express. By the end of 2025, TOTEM will have connected the entire length of the “Line 15 South” with 5G, enabling all operators to connect passengers on the trains and on the platforms of the future line. When completed, this should be the first fully 5G connected Grand Paris Express line of the parisian metro system.

Complex technical operations: 
A few weeks ago, TOTEM began installing the 1,000 pieces of 5G equipment that will connect the 16 stations and 33 km of the future “Line 15 South” of the new Parisian metro system. The teams at Société des grands projets, the developer of the Grand Paris Express, incorporated this major industrial project into the design of the future 100% connected metro line. 

Deploying a 5G mobile network in the tunnels of a metro is a real technical challenge: it's an indoor space with a high density of people, movements, and very thick (and therefore wave-impermeable) walls. TOTEM is deploying this pooled 5G network for all operators, working within the technical constraints of the tunnels and meeting the specific mobile coverage needs of all operators. 

A growing need for indoor connectivity: 
With 80% of connectivity used indoors, TOTEM has positioned itself as the leading TowerCo in this market, connecting underground transport, stadiums, concert halls, and shopping malls.

Thierry Papin, CEO of TOTEM France, says: “Indoor connectivity is a priority for transport players. TOTEM's operational deployment of 5G in the tunnels and stations of the future Line 15 South of the Grand Paris Express is a major industrial project. I would like to commend the collective work done with the Société des grands projets to make this project a reality for the people of the Ile-de-France region.“

About Orange

About Orange Orange is one of the world’s leading telecommunications operators. The Group aims to be the trusted partner for everyday digital life by providing individuals, businesses and communities with reliable connectivity and innovative services. As of the end of 2025, Orange connects 340 million customers (including MasOrange) across 26 countries and generated 40.4 billion euros in revenues.
As a trusted player, Orange leverages the excellence of its very high-speed broadband networks to deploy digital infrastructure in Europe, Africa and the Middle East. The Group is a European leader in fiber, with 100 million connectable households, and convergent offers. In France, Orange connects 34 million customers and was ranked No. 1 by the regulator Arcep for the quality of its mobile network for the 15th consecutive year. In Africa and the Middle East, the Group’s growth engine, Orange serves nearly 180 million customers and promotes digital and financial inclusion through its connected solutions.
Under the Orange Business brand, the Group supports companies in transforming their networks as well as in AI, trusted cloud and cybersecurity. Orange is also a major player in the wholesale market, where it has a leading global telecom infrastructure and significant capabilities for deploying and operating submarine cables. A committed innovator, Orange relies on 700 researchers and holds a portfolio of 11,000 patents.

Orange is listed on Euronext Paris (symbol ORA). More information: www.orange.com. 

Orange and any other Orange product or service names mentioned in this material are trademarks of Orange or Orange Brand Services Limited.