Ciptex incident
Voice Call Failures from a Subset of Twilio Phone Numbers to Numbers in the United States
Resolved after 2 hours 34 minutes, affecting Twilio Voice, North America, on September 9, 2026.
Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.
Affected components
Update timeline
- investigating Sep 09, 2026, 05:53 PM UTC
We have detected potential service disruption through our monitoring systems and are actively investigating. A detailed assessment of the impact and affected services will be provided within the next 30 minutes.
- investigating Sep 09, 2026, 05:59 PM UTC
Our customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Verizon network subscribers in 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.
- monitoring Sep 09, 2026, 06:22 PM UTC
We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to Verizon network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- monitoring Sep 09, 2026, 08:24 PM UTC
We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to Verizon network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
- resolved Sep 09, 2026, 08:28 PM UTC
Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.
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