The Blog

Broadly speaking, telecom service providers have two ways of connecting traffic to a destination telco.

They can either connect directly with the destination carrier or route traffic to a wholesale carrier that connects to a destination telco.

Although many retail service providers, such as mobile operators, MVNOs, and cable broadband providers, rely heavily on wholesale carriers to transport and terminate their customers’ international calls, wholesale revenues are down 11% from ten years ago.

Let’s take a moment to dive in a bit and see what's going on.

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Paul Brodsky

What do you envision when you think of data in motion? It's a beautiful, abstract idea.

Vinay Prabhu, Director of Product Management at Graphiant is our latest guest on TeleGeography Explains the Internet. He recently joined us to discuss the intricacies of moving data around the globe.

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Greg Bryan

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.

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Jayne Miller

Digital Infrastructure Industry Expert Maya Glick has two decades in the digital infrastructure and telecommunications game.

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Jayne Miller

Make some space on your wall.

The 2025 Africa Telecommunications Map is out—and it pairs perfectly with this year’s Submarine Cable Map.

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Patrick Christian

Lately, I've been thinking about the movie director Alfred Hitchcock. One of his first big hits was a 1936 film called Sabotage.

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Tim Stronge

If you’ve checked out our International Voice Report, you probably noticed that the data carefully distinguishes between retail and wholesale traffic, as well as between wholesale and direct traffic.

What's the difference?

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Paul Brodsky

The European telecommunications market has been a global trailblazer in terms of innovation, affordability of service, and infrastructure deployment. Few markets in the world have seen comparable levels of investment and competition.

Europe also crucially interconnects regions, providing key hubs for traffic exchange and access to content for Africa, Asia, and the Middle East.

The 2024 Capacity Europe conference in London highlighted the industry's progress and the challenges that lie ahead in the near and medium term. TeleGeography was there, not only with submarine cable maps in hand but also moderating panels on subsea cable route diversity and discussing current market trends with the industry’s leading experts.

So what did we learn?

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Rob Schult

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.

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Kristin Carlson