By Greg Nowak. Last updated 2026-06-18.
Cloudflare's February 20, 2026 BYOIP outage is the kind of incident that should reset how customers think about resilience. In Cloudflare's own postmortem, the trigger was an internal change, not an attack, and the result was about 1,100 customer prefixes being withdrawn from the Internet for 6 hours and 7 minutes. If those prefixes front production traffic through CDN, Spectrum, Magic Transit, or egress, the business implication is plain: a capable provider can still leave you unreachable.