Twilio - Spikes in Call Signing Failures

Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.

Twilio are observing a small subset of calls that may have completed without STIR/SHAKEN signature, which could cause carriers to treat the call as spam. Twilio engineering teams are actively working to resolve these issues. We expect to provide another update in 1 hour or as soon as more information becomes available.

We have detected potential service disruption through our monitoring systems and are actively investigating. A detailed assessment of the impact and affected services will be provided within the next 30 minutes.