Cinia C-Lion1 Submarine Cable

C-Lion1 Submarine cable provides higher quality with new optical infrastructure 

Many of the legacy subsea cable systems going out from Finland are aging and getting closer to the end of their lifetime. The new route through C-Lion1, the Northern Digital Highway provides high performance, secure and scalable platform for growing bandwidth requirements.

Boosting Finland´s Opportunity being a Major European Hub for Digital Infrastructure

C-Lion1 – Submarine cable

Cinia is focused, committed and with proven capability to build networks smarter, together with its partners. Many multinational companies have already identified Finland as the most important hub between the East and the West. To take connectivity to the next level, an Arctic Connect –project has also been initiated, in order to create the shortest direct sea route from Asia to Mainland Europe.


  • End points Helsinki and Rostock, Germany
    • Branching units Hanko and the Baltics
  • Cable length 1173 km
  • 8 fiber pairs
  • Total system capacity 144 Tb/s
  • Cable laying started in October 2015 and was completed early 2016
  • Services provided: fibre pairs, wavelengths,  Ethernet, IP-VPN

Benefits of C-Lion1

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Enables ultra-high speed connectivity with the lowest latency and secure data transmission for the growing capacity needs. Provides a unique route directly from Finland to Central Europe creating growth path for the Finnish and European enterprises and economies.

Story of C-Lion1

C-Lion1 submarine cable laying under the Baltic Sea from Helsinki to Rostock, Germany started in October 2015 and was completed as scheduled early 2016.  The Video takes you through the cable project from the idea to completion.The new C-Lion1 cable designed and operated by Cinia connects the data hubs in Central Europe to Finland, Nordics and through Russia further to Asia.

Blogs and news

The Arctic is growing into the Business Power of the Future 

The world is changing, and the Arctic north is becoming more accessible and opening up new business potential. But first, investment in digital and physical infrastructure is needed.

Climatic changes in the Arctic region are affecting the business ecosystems of not only Europe and Asia, but also North America. The area has enormous business potential, but its realization requires major investments and viable communications links. Read more.

The Critical Transformational Shifts of the coming years - Are we Prepared? 

Telegeography, one of the leading telecom analysts gave a good overview to the communications market and their message was quite clear. It is rather hard to predict the future as the growth is so rapid that even the most advanced cloud services providers cannot give estimates to the traffic in 3-5 year span. Read more.

When Milliseconds make a difference - How Carriers benefit from Cinia´s Services

A significant improvement in the user experience, much lower latencies, ability to attract new customers, growing revenues and more diverse routing options. These are examples of the competitive edge Cinia’s carrier customers have reached after forging a contract with us. Read more.

A new Cinia Connection links the Hanko area directly to International Data Networks

Cinia Group’s branch connection of the C-Lion1 submarine data cable is about to be completed. The new connection increases the appeal of the Western Uusimaa region from the standpoint of new business opportunities and creation of new jobs. The enterprises and municipalities in the Hanko and Raasepori region aim at creating a significant node for international data traffic along with Frankfurt, Stockholm and Helsinki. For Cinia, the new Hanko branch complements its international network by new routing options. Read more.

Photo: Multifoto/Johan Ljungvist

Finland provided to Hetzner´s New Data Centre Favourable Location and Fast Connections

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