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Cable cuts, storms, and DNS: a look at Internet disruptions in Q4 2025

David Belson
Radar Internet Shutdown Internet Traffic Outage Internet Trends AWS Microsoft Azure Consumer Services

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Key Technical Details and Main Announcements

In Q4 2025, Cloudflare observed over 180 Internet disruptions, with multiple causes including government-directed shutdowns, cable cuts, power outages, and extreme weather. Notably, a single government-directed Internet shutdown occurred in Tanzania on October 29, lasting approximately 26 hours before restoration. The shutdown resulted in a significant decrease in traffic, with a nominal drop in announced IPv4 and IPv6 address space.

Practical Implications for Developers

Developers should be aware of the potential for Internet disruptions and plan accordingly. This may involve implementing redundancy and failover mechanisms to ensure continued service availability. Additionally, developers should consider using Cloudflare's Radar Outage Center to monitor for verified anomalies and confirmed outages.

Important Facts and Figures

  • 180 Internet disruptions observed in Q4 2025
  • Single government-directed Internet shutdown in Tanzania on October 29
  • Nominal drop in announced IPv4 and IPv6 address space during shutdown
  • Restoration of service in Tanzania on November 3
  • Multiple cable cuts affecting Digicel Haiti's international fiber optic infrastructure
  • Significant decrease in traffic for Cybernet/StormFiber (Pakistan) on October 20.

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