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Outage in Twilio

Degraded Experience on S/S, CNAM and VI for Select Phone Numbers

Resolved Minor
August 31, 2026 - Started 7 days ago - Lasted about 7 hours
Official incident page

Incident Report

Summary AI Generated

Twilio experienced a 7.2-hour degraded service incident affecting STIR/SHAKEN (S/S), CNAM, and Voice Integrity for phone numbers on sub-accounts. The issue was identified after monitoring detected service degradation, with engineers working throughout to investigate and remediate. The incident was fully resolved by 7:43 PM PT on August 31, 2026, with all affected services confirmed back to normal operation.

Our monitoring systems have detected a potential issue. Our engineers have been alerted and are investigating. We will provide an update when we have more details.
Components affected
Twilio PHONE NUMBERS

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Latest Updates ( sorted recent to last )
RESOLVED 7 days ago - at 09/01/2026 02:43AM

The issue affecting S/S, CNAM, and Voice Integrity for phone numbers on sub-accounts has been successfully resolved. We have monitored the systems and confirmed that all services have returned to normal operation. We apologize for any inconvenience this may have caused and appreciate your patience.

IDENTIFIED 7 days ago - at 08/31/2026 11:28PM

After monitoring for some time, we started seeing a degradation of the service. Some phone numbers on sub-accounts might witness degraded experience on S/S, CNAM and Voice Integrity. Our engineers are working to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

IDENTIFIED 7 days ago - at 08/31/2026 09:28PM

After monitoring for some time, we started seeing a degradation of the service. Some phone numbers on sub-accounts might witness degraded experience on S/S, CNAM and Voice Integrity. Our engineers are working to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED 7 days ago - at 08/31/2026 08:28PM

After monitoring for some time, we started seeing a degradation of the service. Some phone numbers on sub-accounts might witness degraded experience on S/S, CNAM and Voice Integrity. Our engineers are working to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 7 days ago - at 08/31/2026 08:28PM

We are continuing to investigate this issue.

INVESTIGATING 7 days ago - at 08/31/2026 07:37PM

Our monitoring systems have detected a potential issue. Our engineers have been alerted and are investigating. We will provide an update when we have more details.

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