Home
Explore Cables Locations Map ISP status Transit map Country resilience Check my connection
Live Network radar Live Map Cable monitoring Events log Cable incidents Big screen
Learn Research Guide Methodology Latency Overland links Deployments by year Pulse Open dataset API Widgets What's new About Contact

Germany-Denmark 3

In Service

-1 km · 2 Landing Points · 2 Countries · Ready for Service: 2000

Ctrl + Scroll to zoom
Tap to interact with map

Specifications

Length-1 km
StatusIn Service
Ready for Service2000
Landing Points2
Countries2

Owners

TDC Group

Landing Points (2)

Location Country Position
Gedser, Denmark DK Denmark 54.5763°, 11.9290°
Markgrafenheide, Germany DE Germany 54.1914°, 12.1495°

If this cable is cut

What each country and landing point keeps if Germany-Denmark 3 goes down. A calculation from our cable and landing-point database, not a forecast.

CountryOther international cablesLand linksWhat remains
Germany8 yes reserve of 8 cables
Denmark26 yes reserve of 26 cables

Landing points with no other cable nearby

Every landing point of this cable has another cable within 50 km.

No alerts from our monitoring on this cable in the last 180 days. Events feed →

Counted: other international cables landing in the same country (domestic cables between points of one country are not a way out), other cables at landing points within 50 km, and whether the country has land links. Not counted: cable capacity, operator contracts and satellite. Use as a first look at dependence, not as a statement of what would happen.

About the Germany-Denmark 3 Cable System

Overview

Germany-Denmark 3 is a submarine telecommunications cable connecting Gedser in Denmark with Markgrafenheide in Germany. Operational since the year 2000, this cable plays a critical role in facilitating data exchange between Denmark and Germany, two neighboring countries with strong economic and cultural ties. The cable is owned and operated by TDC Group, a leading telecommunications provider in Denmark. Germany-Denmark 3 is part of the infrastructure that supports regional connectivity, linking the Nordic region with Central Europe.

Although the cable spans a relatively short distance, its strategic importance lies in its ability to support high-speed communications across the Baltic Sea. This connection is vital for businesses, governments, and individuals relying on seamless data transfer between the two nations. The cable also contributes to the broader European network, enabling efficient data traffic between northern and central Europe.

Route and Landings

Germany-Denmark 3 traverses the Baltic Sea, landing at Gedser in Denmark and Markgrafenheide in Germany. Gedser, located at the southern tip of Denmark's Falster island, is a notable point for maritime and telecommunications links due to its proximity to Germany. Markgrafenheide, situated near Rostock in northern Germany, serves as a strategic landing site for cables connecting Germany to its northern neighbors.

The Baltic Sea is a relatively shallow body of water, making it well-suited for laying submarine cables. The route between Gedser and Markgrafenheide spans one of the narrowest sections of the sea, minimizing the cable's length while maximizing its efficiency. This direct connection facilitates robust data exchange between Denmark and Germany, supporting cross-border communication and economic activity. The cable's placement reflects the geographic and economic interdependence of the two nations, as well as their shared commitment to maintaining reliable digital infrastructure.

Ownership and History

Germany-Denmark 3 is owned and operated by TDC Group, a prominent telecommunications company based in Denmark. TDC Group has been instrumental in developing Denmark's digital infrastructure, and its ownership of this cable underscores its role in fostering international connectivity. The cable was officially ready for service in 2000, marking its integration into the regional network that links the Nordic countries with Central Europe.

The year 2000 was a period of significant growth in global telecommunications, with many submarine cables being deployed to meet increasing demand for high-speed internet and data services. Germany-Denmark 3 was part of this wave of expansion, providing a critical link between two economically significant regions. While detailed information about the cable's construction and maintenance is not publicly available, its continued operation highlights its importance in the region's digital ecosystem.

What Our Measurements Show

Our live monitoring of Germany-Denmark 3 has revealed consistent performance across 156 measured corridors. The best round-trip time (RTT) recorded is 24 milliseconds, while the average RTT stands at 27 milliseconds. These figures indicate a reliable and efficient connection, essential for applications requiring low latency, such as real-time communication and data transfer.

The cable's performance metrics reflect its strategic design and placement. By connecting Gedser and Markgrafenheide, Germany-Denmark 3 minimizes physical distance and optimizes latency, making it a critical asset for both nations. The consistent RTT values observed through our probes demonstrate the cable's ability to handle data traffic effectively, contributing to the overall stability of the regional network. This reliable connection supports a wide range of activities, from business operations to personal communications, underscoring the cable's importance in facilitating modern digital life.

What next: Explore Germany-Denmark 3 on the interactive submarine cable map, browse the full catalog of submarine cables, or follow live network events and real-world internet latency.

Health

Status✓ Normal
RTT38.61 ms
Last checked2026-07-16 13:31

Monitored by our probe network. Open monitoring →

FAQ

What is the length of the Germany-Denmark 3 cable?
The Germany-Denmark 3 submarine cable is -1 km long.
Which countries does Germany-Denmark 3 connect?
Germany-Denmark 3 connects 2 countries via 2 landing points.
Who owns the Germany-Denmark 3 cable?
Germany-Denmark 3 is owned by a consortium including TDC Group.
When was Germany-Denmark 3 put into service?
The Germany-Denmark 3 cable entered service in 2000.
Germany-Denmark 3
  • Length-1 km
  • StatusIn Service
  • Ready for Service2000

Calculate Cable Distance

Find the actual cable routing distance between any two cities

Open Calculator →
Submarine cables Land fiber Live probes
Explore GeoCables: interactive submarine cable map · all 723 submarine cables · live internet latency map · cable landing points worldwide

Log In

Access your routes, favorites, and API key

Create account Forgot password?