Dark Fiber connections

Relined Fiber Network’s area of activity? That is the Dark Fiber network in Northwest Europe. You can reach virtually any location using our reliable Dark Fiber connections. Would you like to know more about the benefits for your organisation? We would be happy to present our ideas on setting up a scalable and future-proof network infrastructure.

When you choose Relined, you opt for quality, a solution-oriented approach, reliability, flexibility and ‘a deal is a deal’ mentality.

What is Dark Fiber?

Dark Fiber, i.e. unlit glass fibre, is a term for glass fibres that activating equipment has not yet been connected to. The activating equipment is needed to send and receive data through the glass fibre (fibre optics). In other words, without this activating equipment the fibre literally remains unlit, which is why it is known as ‘Dark Fiber’.

Our blog tells you more about what Dark Fiber entails and the opportunities and benefits it offers you as an organisation.

More about Dark Fiber

Knowledge & Experience

More Knowledge & Experience


In the Netherlands, our collaboration with our preferred suppliers – BT, ProRail and TenneT – means that we have more than 14,000 kilometres of high-quality fibre-optic infrastructure at our disposal. The end result is a nationwide Dark Fiber network and an extensive package of services.

Are you looking for a reliable data center connection in Amsterdam? In Amsterdam, more than 30 data centers are (redundantly) connected to our metro network. We deliver reliable connections. Fast and priced at a fixed, competitive rate.

Relined operates a submarine cable between the Netherlands and Denmark, the COBRA Fiber Optic Cable. One with the advantage of a unique location in comparison to competitive connections. This submarine cable gives you access to a reliable and super-fast connection between the two countries and you can easily connect form Esbjerg with networks on land or the submarine cable to the UK.

Our Dark Fiber infrastructure in Germany offers nationwide coverage and covers more than 15,500 kilometres. This is one reliable network and the ideal solution for long-distance connections that connect city centres with each other.

In Frankfurt, we have our own Dark Fiber metro network that a whole host of data centers are (redundantly) connected to. Connections in this busy financial centre in Germany are available at competitive fixed rates.