Markgrafenheide, Germany

Markgrafenheide, Germany is a submarine cable landing point in Germany. One international cable system comes ashore here, and together they reach 1 other countries.

Why cable lands at Markgrafenheide

Most of the 1 systems here are domestic; the exception reaches Denmark, making Markgrafenheide a stepping stone that carries the region's traffic off Germany's national grid toward the wider network.

Where its cables reach

• Germany-Denmark 3 connects it to Europe (Denmark).

The systems in detail

Documented capacity and vintage vary across the roster: Germany-Denmark 3 (in service since 2000). Facts for every system are on its own cable page.

What the concentration means for resilience

A single system lands here, so this point is a genuine dependency rather than a redundant one. The exposure is specific: the link to Europe rests on a single cable, with no sibling landing alongside it. Because these systems share the same short stretch of coast and shore infrastructure, a localized event at the landing zone can reach far more capacity than the cable count alone suggests. GeoCables tracks each of these systems individually for exactly this reason.

What our monitoring has recorded

GeoCables watches these systems continuously rather than describing them once. Since 2026-03-10 we have logged 129 route anomalies across 73 cable systems worldwide. None of the systems landing here has triggered a route anomaly in that window, a stability signal in its own right for a hub of this size. This section updates automatically the moment that changes, as it already has for the 73 other systems flagged across our coverage.

Latency, measured

From the GeoCables probe network, best-case round-trip time to Germany endpoints runs about 23 ms from Minsk, about 50 ms from Tbilisi and about 54 ms from Jerusalem. These are paths into Germany from our own vantage points, not a global average, and they shift as operators re-route.

Who depends on it

The largest access networks in Germany sit behind this coastal capacity: Deutsche Telekom AG (40.6% of users), Vodafone GmbH (20.4% of users), Telefonica Germany GmbH & Co.OHG (9.2% of users) and 1&1 Versatel GmbH (7.8% of users). See the full national picture for Germany.

The coast around Markgrafenheide

This landing point is part of a wider shoreline of connectivity. Within roughly 200 kilometres, the coast also hosts Rostock (13 km away, 3 cable systems), Gedser (45 km away, 4 cable systems) and Puttgarden (70 km away, 1 cable system). Each of these sites brings its own cables ashore, and together they define how much independent capacity, and how much redundancy, this stretch of Germany really has: if one landing fails or a cable needs maintenance, traffic can often be carried through a neighbour.

The physical environment here is monitored too: the GeoCables event feed has logged Green flood alert in Germany (Jun 2026) and Green flood alert in Germany (Jul 2026) near this coastline, and our latency measurements are checked against every such event to see whether the local cables were affected.

In short, Markgrafenheide, Germany carries international traffic for Germany across 1 independent cable system reaching 1 country on 1 continent, and GeoCables monitors each of them in real time.