Collection

Tag: centurylink

CenturyLink’s 2014 911 Outage: The Call Counter That Stopped Emergency Calls

A software counter in a next-generation 911 call-routing platform reached its maximum value and stopped assigning identifiers, blocking thousands of emergency calls across multiple states.

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CenturyLink’s 2020 Outage: When a Bad Flowspec Announcement Broke Internet Reachability

A faulty Flowspec rule inside CenturyLink/Level 3 destabilized routing and control-plane communications, demonstrating how network automation can distribute a mistake globally in seconds.

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