Terralpha network

An ultra-high-speed fibre-optic network

Across France

Terralpha, a subsidiary of SNCF Réseau, is rolling out an ultra-high-speed alternative telecoms network throughout France using optical rail fibres.  

Its unique network, linked to its full ownership along the railway lines, gives it unprecedented resilience, security and sovereignty. 

*Click on the map to zoom in

The Terralpha network is :

20 000

Km of optical fibres

6 000

Towns crossed

2 000



Interconnected DataCenters

Our points of presence

Click on one of the points of presence or enter the name of a town in the search engine below

Our offers

Terrawave Ultra Broadband

Private network on wavelengths
10 to 400 Gb/s

Digital tiles

Space for the installation of DataCenters on railway rights-of-way 

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