Public sector

Secure the transport of your sensitive data and bring ultra-high-speed broadband to the heart of your territory

By creating Terralpha, SNCF Réseau has become the neutral and sovereign operator serving all the regions and departments of France. Your territory deserves ultra high-speed, low-latency broadband.  

Terralpha is extending the SNCF's passenger and freight transport services to include the transport and storage of sensitive data. 

Why choose Terralpha?

Terralpha account its customers include key public-sector players. To match your ambitions, we meet the following requirements calls for tender d'local, departmental or regional players.  

National coverage

Knowledge of the requirements of the operator's job. Commercial contact for the rail network 


Neutral operator with unique expertise. Team dedicated to public procurement projects 


SNCF Réseau subsidiary with strong ethical values A stakeholder in the public sphere. 

Local data storage and processing 

Combining telecoms, energy and land services  

Setting up your regional micro-DataCenters 


Network secured by GMPLS, by 24/7 supervision of active and passive equipment (active OTDR) and by railway policing. Encryption of sensitive data right from the infrastructure 


Traffic routing exclusively on SNCF network fibres using equipment of European origin

They trust us

With its sovereign and alternative network, Terralpha is strengthening the backbone of the RIE by doubling the existing optical loop. The continuity of the public service in normal times and its resilience in times of crisis are thus consolidated.


Our offers

Terrawave Ultra Broadband

Private network on wavelengths
10 to 400 Gb/s

Digital tiles

Landscaped areas which allow the installation of DataCenters on railway rights-of-way 

Our customers


Hosting companies



Terralpha, an SNCF Réseau subsidiary, is deploying
secure, ultra-high-speed, low-latency presence
throughout France.