Industry Newsbgpbyoipcloudflareoutage
Cloudflare Withdraws BYOIP Routes Causing Outage
7.3
On February 20, 2026, Cloudflare experienced a six-hour service outage after a configuration change caused Border Gateway Protocol (BGP) withdrawals of about 1,100 Bring Your Own IP (BYOIP) prefixes. Engineers reverted the faulty Addressing API cleanup change and restored most prefixes by 20:20 UTC, with remaining prefixes manually restored by 23:03 UTC; roughly 25% of BYOIP prefixes were affected.
Key Points
- 1Withdrew about 1,100 BYOIP prefixes via a faulty Addressing API cleanup query, causing a six-hour outage.
- 2Change to BYOIP address management unintentionally withdrew 25% of BYOIP prefixes, impacting global reachability.
- 3Reverted change and manual restores recovered prefixes; practitioners should add staged rollouts and automation safeguards.
Scoring Rationale
Detailed official incident report with actionable remediation; limited novelty and relevance beyond Cloudflare BYOIP customers.
Sources
Public references used for this report.
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