Lumen Technologies today announced that it has expanded its metro (intra-city) and long-haul (inter-city) fiber network infrastructure in Europe, particularly in France, Switzerland, and Spain. Specifically, the company’s network expansions bring its fiber closer to end users to enable faster connectivity, lower latency, and greater security. With these network expansions in Europe, Lumen will offer its dark fiber and enterprise fiber services to additional customers.

Lumen Technologies is extending the reach of its fiber infrastructure in and between major business and finance hubs. In turn, the company is bringing connectivity to new cities and providing denser coverage within cities. As a result, Lumen is connecting multiple enterprise buildings and third-party data centers to its network.

France and Switzerland – Fiber Network Expansion

In France and Switzerland, Lumen increased its footprint with the construction of a new fiber route of 180+ miles between Lyon, France and Geneva, Switzerland. Along the way, Lumen is connecting three new cities in France, which are Grenoble, Chambéry, and Annecy.

Overall, the length of Lumen’s national network rings are ~3.5k route miles in France and 420 route miles in Switzerland.

Spain – Fiber Network Expansion

In Spain, Lumen Technologies completed its national fiber ring. In so doing, Lumen added a new segment of 170+ fiber route miles between Salou, Spain (~60 miles from Barcelona) and the border of France. Additionally, the company built a new metro (intra-city) network in Barcelona.

Finally, the company connected its terrestrial fiber network to the cable landing station of MAREA, a trans-Atlantic subsea cable, in Sopelana (near Bilbao, Spain). Notably, MAREA is the first direct link between the United States (Virginia Beach) and Spain, spanning 4.1k miles (6.6k kilometers).

Overall, the length of Lumen’s national network ring in Spain is ~1.0k route miles.

Lumen Technologies – Global Fiber Network

Globally, Lumen Technologies’ network comprises ~450k route miles (720k route kilometers) of fiber. This network connects to 180k+ on-net buildings and 2.2k public and private third-party data centers. For example, Lumen’s fiber network connects to the top public cloud service providers including Amazon Web Services (AWS), Microsoft Azure, Google Cloud, IBM Cloud, and Oracle Cloud.


In Europe, Lumen Technologies’ network comprises ~23.6k route miles (38k route kilometers) of fiber. This network connects to 2.0k+ on-net buildings and 500 public and private third-party data centers. Notably, Lumen Technologies’ fiber in France, Switzerland, and Spain comprises ~21% of its European fiber network by route miles.

Jonathan Kim covers Fiber for Dgtl Infra, including Zayo Group, Cogent Communications (NASDAQ: CCOI), Uniti Group (NASDAQ: UNIT), Lumen Technologies (NYSE: LUMN), Frontier Communications (NASDAQ: FYBR), Consolidated Communications (NASDAQ: CNSL), and many more. Within Fiber, Jonathan focuses on the sub-sectors of wholesale / dark fiber, enterprise fiber, fiber-to-the-home (FTTH), fiber-to-the-premises (FTTP), and subsea cables. Jonathan has over 8 years of experience in research and writing for Fiber.


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