PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing.

Another US Internet Backbone Provider Cuts Service With Russia

Lumen Technologies joins Cogent Communication and severs ties with its enterprise Russian customers.

 & Michael Kan Principal Reporter

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

Our Expert
LOOK INSIDE PC LABS HOW WE TEST
65 EXPERTS
43 YEARS
41,500+ REVIEWS

A second internet backbone provider in the US is terminating services in Russia over the Kremlin’s invasion of Ukraine, days after Cogent Communications did the same.

Lumen Technologies, formerly CenturyLink, announced: “We are immediately stopping our limited operations in Russia.” 

Lumen had a “very limited physical presence” in the country and offered “extremely small” business services to Russia’s enterprise customers. “We do not have any consumer customers in Russia,” the company said.

However, the network monitoring company Kentik says Lumen still served some major telecommunications providers in the country including Rostelecom, TransTelekom, and the mobile operators MTS, Megafon, and VEON.

Cogent, in contrast, reportedly had several dozen enterprise customers in Russia, which also included Rostelecom, TransTelekom, Megafon, and VEON. 

The decision from Lumen and Cogent to cut ties with Russia is expected to disrupt internet connectivity across the country by reducing its access to network bandwidth. This has sparked concerns local users in Russia will suffer and struggle to find reliable and objective news about the war in Ukraine. 

“Without the internet, the rest of the world would not know of atrocities happening in other places. And without the internet, ordinary citizens of many countries wouldn’t know what was being carried out in their name,” Internet Society President Andrew Sullivan wrote last week. 

However, in Cogent’s case, the company said its Russian customers can migrate to other internet backbone providers. “Cogent is not otherwise restricting or blocking traffic originating from or destined for Russia,” the company told PCMag. 

As for Lumen, the company said its business stoppage isn’t a pause. The company is pulling out from the Russian market, citing an “increased security risk” from within the country. The wording suggests Lumen is concerned about the Russian government launching cyberattacks through the company’s network backbone to target other internet service providers or companies. 

“We have not yet experienced network disruptions, but given the increasingly uncertain environment and the heightened risk of state action, we took this move to ensure the security of our and our customers’ networks, as well as the ongoing integrity of the global Internet,” according to Lumen, which says it will continue to serve the Ukrainian market.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

Read full bio