Cogent Communications is one of the world’s largest tier-one IP backbone providers, carrying roughly a quarter of global internet traffic every day. Built on density and scale, the network spans North America and Europe with a footprint designed to deliver high-capacity IP transit wherever digital traffic concentrates. As bandwidth demand accelerates (driven by AI, skyrocketing content distribution and distributed IT architectures) that density becomes a strategic advantage. “We’ve always built our strategy around density,” says Mark Harris, CRO & VP of Global Sales at Cogent. “If traffic is there, we want to be there. That’s what allows us to scale quickly and deliver consistent performance globally.”

How would you pitch Cogent Communications?

Mark Harris: “Cogent is a US-based, NASDAQ-listed tier-one network operator. We operate one of the largest IP backbones in the world and carry roughly 25% of global internet traffic on a daily basis. That scale is not accidental: density has always been part of our strategy.”

“We serve North America, Europe and increasingly other international markets. In many major cities, particularly in the US, we have on-net presence in multi-tenant office buildings as well as data centers. That footprint allows us to deploy capacity quickly and at scale.”

How does Cogent stand out in a competitive tier-one market?

“It is correct that we conduct our business alongside other major global backbones. Where we differentiate is density and operational efficiency. In many markets, we are present in more buildings and more data centers than competitors. That means we can often connect where others cannot or deploy high-capacity circuits faster.”

“Capacity demand has evolved radically. Seven years ago, customers would start with a 1G commit on a 10G interface. Today, it’s common to begin with 100G and increase to 400G. Our network architecture is built to scale with that demand. We also offer aggregated commit models across multiple locations. For example, a customer with presence in Frankfurt, London and New York can operate under a single aggregated commitment level. From a commercial and operational standpoint, that simplifies scaling significantly.”

“Even without AI, internet traffic has been growing consistently for years”

Does that aggregation introduce additional risk?

“No. Aggregation is primarily a commercial and billing construct. Infrastructure-wise, customers remain multi-homed and operate their own redundancy strategies. Most of our net-centric customers are already multi-provider environments. Our role is to provide high-performance IP transit within that architecture.”

What major trends are shaping the telecom and IT market today?

“Artificial intelligence is obviously a major driver, but even without AI, internet traffic has been growing consistently for years. What AI does is accelerate that curve. We see continuous growth in capacity requirements, not only because of AI workloads, but also IoT, content distribution, gaming, large-scale software downloads, global events, and so on. Traffic peaks keep breaking records.”

“There is also a practical factor: the economics of cross-connects in data centers. Instead of running multiple smaller circuits, customers increasingly prefer fewer high-capacity interfaces. Moving from multiple 100G to 400G circuits, for example, can optimise both cost and operational complexity. Looking ahead, 800G is clearly on the horizon.”

“Europe is becoming increasingly important, particularly for US-based networks”

How do you see Europe evolving within that global landscape?

“Europe is becoming increasingly important, particularly for US-based networks establishing or expanding their presence here. Cities like Frankfurt, London, Amsterdam and Paris remain central hubs, but we also see growing importance in other strategic locations, such as Brussels, where networks densify. Demand typically starts with colocation: once enterprises or content providers establish a footprint, connectivity requirements follow. It’s very much an ecosystem dynamic.”

What do you expect from data centre partners like LCL?

“Visibility and ecosystem alignment are key. Tier-one networks don’t rely on traditional mass marketing: the audience we serve is already inside carrier-neutral facilities. When data center partners actively showcase the available carrier ecosystem, including global backbone providers like Cogent, it removes friction. One of the biggest hurdles in closing new business can simply be geographical misalignment, as in: not sharing the same facility. Carrier-neutral environments like LCL help eliminate that barrier.”

“The internet can scale as long as the physical infrastructure scales alongside it”

Sustainability and power availability are critical themes. How does that impact Cogent and your customers?

“Energy pricing and availability are increasingly part of the conversation. AI-driven infrastructure in particular requires high-density power deployment. We see large-scale AI-dedicated data centers being built in regions with lots of space and access to cheap and clean energy, such as Canada or the Nordics, precisely to maximise kilowatt delivery. While sustainability is not the primary driver of backbone strategy, energy efficiency and geographic power availability are becoming structural considerations in network deployment decisions.”

“For customers, transit is often only one part of the cost equation. Power, space and cross-connect pricing can outweigh connectivity itself. So understanding the full ecosystem is essential. The internet layer can scale, as long as the physical infrastructure (space, power, cooling) scales alongside it. That will be one of the defining challenges of the coming years.”