AlertOps experienced a critical incident on October 20, 2025 affecting Notifications Delivery Service, lasting 3h 55m. The incident has been resolved; the full update timeline is below.
Affected components
Notifications Delivery Service
Update timeline
- monitoring Oct 20, 2025, 06:32 PM UTC
We are experiencing intermittent delivery of outbound SMS with our provider - Twilio. This is due to ongoing performance issues with Amazon's AWS service. Some SMS are going out. We are continuing to monitor the incident.
- resolved Oct 20, 2025, 09:13 PM UTC
No SMS failures have been observed since 1:45 PM CT.