Outage in Twilio

Small Number of Voice Calls Are Failing Stir/Shaken Attestation

Minor
July 22, 2025 - Started about 7 hours ago
Official incident page

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Outage Details

We are currently investigating an issue that is causing a small number of Voice calls to fail Stir/Shaken Attestation. Due to this issue, these voice calls are getting signed as Attestation C. Our engineering team is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
Latest Updates ( sorted recent to last )
MONITORING about 2 hours ago - at 07/22/2025 07:58AM

We are observing recovery in issue that is causing a small number of Voice calls to fail Stir/Shaken Attestation. Due to this issue, these voice calls are getting signed as Attestation C. We will continue monitoring the service to ensure a full recovery. We will provide another update in 8 hours or as soon as more information becomes available.

MONITORING about 4 hours ago - at 07/22/2025 06:00AM

We are observing recovery in issue that is causing a small number of Voice calls to fail Stir/Shaken Attestation. Due to this issue, these voice calls are getting signed as Attestation C. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

MONITORING about 6 hours ago - at 07/22/2025 04:01AM

We are observing recovery in issue that is causing a small number of Voice calls to fail Stir/Shaken Attestation. Due to this issue, these voice calls are getting signed as Attestation C. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING about 7 hours ago - at 07/22/2025 03:00AM

We are currently investigating an issue that is causing a small number of Voice calls to fail Stir/Shaken Attestation. Due to this issue, these voice calls are getting signed as Attestation C. Our engineering team is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

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