Outage in Twilio
Spikes in Call Signing Failures
Resolved MinorIncident Report
Our monitoring systems have detected a potential issue with call signing failures. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
Components affected
Twilio PSTNTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
7 months ago - at 09/20/2025 05:03PM
The issue affecting a small subset of calls that may have completed without STIR/SHAKEN signature has been resolved, and the service is functioning normally at this time.
MONITORING
7 months ago - at 09/20/2025 04:33PM
We have started seeing recovery for a small subset of calls that may have completed without STIR/SHAKEN signature. We will continue to monitor to ensure a full recovery. We expect to provide another update in 30 minutes or as soon as more information becomes available.
INVESTIGATING
7 months ago - at 09/20/2025 04:24PM
We 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. Our 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.
INVESTIGATING
7 months ago - at 09/20/2025 04:12PM
Our monitoring systems have detected a potential issue with call signing failures. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
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