Outage in Twilio
Subset of Inbound Calls from AT&T are Failing Shaken/Stir Verification
Resolved MinorIncident Report
Summary AI Generated
Twilio experienced Shaken/STIR verification failures for inbound calls originating from the AT&T network in the United States, affecting Voice services in North America. The issue lasted 5 hours before being fully resolved. Customers experienced call authentication problems during this period, with recovery beginning approximately 30 minutes before full resolution.
Our monitoring systems have detected a potential issue with Shaken/Stir validation for a subset of inbound calls. Our engineers have been alerted and are investigating. We will provide an update when we have more details.
Components affected
Twilio Voice, North AmericaTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 2 hours ago - at 06/03/2026 11:36PM
The issues for Shaken/Stir verification failures for inbound calls originating from the AT&T network the United States has been resolved and it is operating normally at this time.
MONITORING
about 3 hours ago - at 06/03/2026 11:03PM
We have started seeing recovery for Shaken/Stir verification failures for inbound calls originating from the AT&T network the United States. 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
about 5 hours ago - at 06/03/2026 08:42PM
Twilio customers may be experiencing Shaken/Stir verification failures for inbound calls originating from the AT&T network the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
INVESTIGATING
about 6 hours ago - at 06/03/2026 07:42PM
Twilio customers may be experiencing Shaken/Stir verification failures for inbound calls originating from the AT&T network the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
INVESTIGATING
about 7 hours ago - at 06/03/2026 06:40PM
Our monitoring systems have detected a potential issue with Shaken/Stir validation for a subset of inbound calls. Our engineers have been alerted and are investigating. We will provide an update when we have more details.
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