Ciptex incident
Voice Call Failures from a Subset of Twilio Phone Numbers to Numbers in the United States
Ciptex experienced a minor incident on September 9, 2026 affecting Twilio Voice, North America, lasting 2h 34m. The incident has been resolved; the full update timeline is below.
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.