Dark fiber, your tailor-made ultra high-speed connections.
Accelerating the digital transformation of businesses and public organizations using dark fiber.
For over 20 years, RATP Connect has been committed to providing businesses and public authorities with ultra-reliable connectivity by deploying the largest dark fiber optical network in the Île-de-France region. Its key strength? Leveraging metro and RER railway infrastructures to route cables from one building to another. Dark fiber paves the way for a more connected and high-performance digital future, meeting businesses’ growing demands for ultra-high-speed broadband.

Available as needed
Dark fiber is the commonly used term for Dark Optical Fiber (DOF). Unlike lit fiber offerings, dark fiber does not initially carry any light. It can be activated once optical network equipment is installed at both ends of the fiber, allowing bandwidth capacity to be adjusted according to specific needs.
Scalable and adaptable
Well suited to modern work environments and underground connected spaces, dark fiber adapts to new ways of working and meets the growing needs driven by increased use of cloud services and remote working in particular. Dark fiber offers true freedom of choice when selecting your operator, who can configure any type of protocol required.
A reliable and highly secure network
Choosing dark fiber means opting for enhanced security for your data and business operations. Considered a major technological breakthrough in the telecommunications sector, it delivers ultra-high, customizable and secure bandwidth while ensuring superior transmission quality.