Backbone internet provider Cogent cuts ties with Russian clients, including state-owned telecom Rostelecom, so it can't be used for propaganda or cyberattacks
Advocates of an open, globally connected Internet long have worried that a major country or region would break away …
Context & Ripple Effects
Russia had already established the legal basis for a “sovereign internet” designed to permit disconnection from the global network. Cogent’s removal of service from Rostelecom and other Russian clients turns that contingency from a domestic-policy goal into an immediate cross-border connectivity constraint.
The move also became the first step in a broader supplier retreat: Lumen followed Cogent out of Russia, while later coverage framed the resulting separation from Western services as a splinternet risk.
First-order effects
- Rostelecom and Cogent’s other Russian clients lose access to Cogent’s backbone service, removing a U.S. transit provider from their international connectivity options.
- Cogent stops providing a route that it said could be used for Russian propaganda or cyberattacks, directly separating the provider from those clients’ traffic.
Second-order effects
- Lumen’s subsequent exit narrows Russia’s international backbone options further, leaving the remaining external data sources identified in related coverage in Sweden, Italy, and the UK.
- The later withdrawal of censorship-tech supplier Sandvine extends the pressure beyond transit: Russian ISPs face retrenchment by both connectivity and network-control vendors.
Third-order effects
- A sequence of foreign-provider exits reinforces the operating logic behind Russia’s sovereign-internet framework: domestic networks must be able to function with fewer external dependencies.
- If such exits and service restrictions persist, cross-border internet access is likely to be shaped increasingly by national control points rather than by interoperable global routing, the splinternet outcome identified in related coverage.
The trend: Internet backbone and network-service providers are becoming geopolitical chokepoints, accelerating sovereign-network strategies and fragmentation of global connectivity.