Submarine Cable Insights
Data-driven analysis of global internet routing, submarine cable performance, and network anomalies — based on real measurements.
Week in Review: One Second to Taiwan, 724ms to an Island, and a Packet That Crossed Three Continents to Reach Colombia
GeoCables monitored over 695 submarine cables this week and found packets taking absurd detours: 1,021ms to Taiwan through 10 countries, 724ms to Mauritius via South Africa, 548ms Singapore to Colombia via Paris. Here are the most extreme routes of March 24-29, 2026.
Antarctica: The Last Continent Without a Submarine Cable — Where Scientists Schedule Their Internet by the Hour
Antarctica remains the only continent with zero submarine cables. Scientists endure 750ms latency, 40 kbps speeds, and internet access limited to a few hours per day. Chile is now studying a 1,000 km cable that could change everything by 2034.
Arctic Cables: How the World's Northernmost Communities Stay Online
From Svalbard to Greenland to Russia's Northern Sea Route — how submarine cables bring internet to the Arctic. GeoCables maps the world's most extreme cable infrastructure.
September 6, 2025: The Day the Red Sea Lost Its Cables — And the Internet Survived
On September 6, 2025, multiple submarine cables were severed in the Red Sea near Jeddah. Microsoft Azure went into emergency rerouting. India, Pakistan, and the UAE lost speed. GeoCables analyzes what happened, how the internet rerouted, and what our probes see today.
The Pacific Islands' Internet Paradox: Why Data Crosses Three Oceans to Reach Samoa
Our probes measured 866 traceroutes to Samoa — every single one crosses Europe, Singapore, and Australia before arriving. RTT swings from 381ms to 1,279ms within the same network. Here's why.