Feb 27, 2025
How Many Submarine Cables Are There, Anyway?
Subsea cables power the internet under oceans all over the world. But how many cables are there?
Subsea cables power the internet under oceans all over the world. But how many cables are there?
What makes a city a hub? And what makes a hub healthy?
Before we answer these questions, we must acknowledge that the interconnection market is not a homogeneous thing. It's an ecosystem comprised of numerous critically interdependent parts, much like a body or a machine.
Hello, gentle readers, and welcome to the 2025 State of the Network Report—our eighth edition.
The TeleGeography team spent the last year compiling market surveys, building algorithms, and analyzing emerging trends, and now we're ready to share the highlights.
We haven't been getting enough fiber here at TeleGeography Explains the Internet, but we're about to change that.
Nutritional jokes aside, this week, we welcome Todd Chapman, a veteran in fiber development, to the hot seat. Todd walks us through the ins and outs of Layer 0 of the physical infrastructure underlying data transmission. Some classic explaining of the internet.
Lately, I've been thinking about the movie director Alfred Hitchcock. One of his first big hits was a 1936 film called Sabotage.
Submarine networks enable uninterrupted connectivity among geographically dispersed physical data centers, effectively forming a global data center without walls.
Substantial investments driving the swift growth of AI infrastructure in both existing and new data centers are set to significantly influence data center interconnect (DCI) networks, which are essential for the success of AI applications and use cases.
Research Director Alan Mauldin recently joined Ciena’s Brian Lavallée for a live webinar exploring these technical and strategic drivers transforming the AI landscape.
In November, we unveiled our new Market Connectivity Score (MCS) and dropped our first public rankings of the top ten most connected and fastest-growing cities in the world.
Because we update the MCS quarterly, it's time to see how those rankings have changed.
Happy holidays, TeleGeography Explains the Internet listeners.
We hope you're savoring the brief week between Christmas and New Year's when the world takes a moment to pause and reflect. School is out, schedules are topsy-turvy, and cookies are acceptable for breakfast. Perhaps like some of us, you've lost track of movies watched and presents wrapped.
If you're looking to take a break between the winter gatherings, grab some headphones. We've got you covered for an hour or so.
Last month, I had the pleasure of speaking at Cairo ICT about colocation and connectivity trends.
I covered global bandwidth first, followed by a rundown on bandwidth in the Middle East and Africa.
Next up, data centers and interconnection hubs, with a discussion on where the hubs are, what makes a hub, and how hubs grow. Finally, I talked about end-user demand, which is very important with the growth of internet and demand.
You can catch a video of this presentation and download my slides below.
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