Arelion upgraded its Nørre Nebel cable landing station to enhance capacity across its Danish network.

The Swedish telecom carrier upgrade the site in southwest Jutland to support additional cable landings and long-term network scalability with front haul, back haul, and subsea horizontal directional drilling (HDDs) for landing multiple diverse sea cables in place.

Arelion's upgrade leverages its network of ducts on the north route from Nørre Nebel to Copenhagen via a subsea cable system spanning from Arhus to Copenhagen. Resilience and route diversity was added on the south route through ducts passing Esbjerg to Kolding and Copenhagen, with Kolding serving as a key junction point for routes south to Germany and east to Denmark's capital. The firm recently completed new duct and cable extensions connecting the atNorth DEN01 Copenhagen data center to what Arelion CEO Daniel Kurgan dubbed “Scandinavia’s AI superhighway.”

Additional optical systems with wavelength capacity have been deployed between Amsterdam and Kolding, enabling more efficient traffic routing and providing diverse bypass paths around Hamburg.

According to Arelion, Denmark’s strategic position and access to renewable energy means its national market is expected to reach $2.9 billion by 2030 at a compound annual growth rate (CAGR) of 11.4%.

“These upgrades to our Danish network reflect our broader commitment to strengthening digital infrastructure across the Nordics, helping us support enterprise and wholesale customers with low-latency, fully diverse connectivity, and predictable performance as they deploy AI applications,” Johan Ottosson, VP strategy and product management at Arelion, noted in a statement. “Our continued investment ensures the capacity needed to keep pace with accelerating demand for AI-driven services, providing a scalable and secure foundation for both training workloads and latency-sensitive inference use cases.”

Arelion expands again

Arelion originally built its Scandinavian network in 2000, under its original name of Telia International Carrier. The firm boasts significant duct capacity across Scandinavia, while operating a mesh of terrestrial routes in the region providing access to 13 subsea cables connecting the Nordics with the Baltics.

Last September it upgraded its Nordic network by connecting hyperscale data centers via last‑mile infrastructure. In addition, high-fiber count cables were deployed in existing ducts between the major Scandinavian capitals of Stockholm, Oslo, and Copenhagen.

More recently, Arelion expanded its Baltic network infrastructure to connect the region's markets with data center hubs across the Nordics alongside Central and Western Europe. That expansion connects various points-of-presence (PoPs) across the Baltics, traversing Finland, Estonia, Latvia, Lithuania, and Poland. Arelion touted the route as reducing latency between the Baltic region and Western Europe, bypassing connections in Copenhagen and Stockholm to avoid capacity bottlenecks.