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.
Trusted by 1,000+ teams
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
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.
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.
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.
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.
We are continuing to investigate this issue.
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.
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with