Ciptex incident

Twilio - Voice Call Failures From Network Subscribers to Twilio United States Phone Numbers

Minor Resolved View vendor source →

Ciptex experienced a minor incident on August 18, 2026, lasting 1h 39m. The incident has been resolved; the full update timeline is below.

Started
Aug 18, 2026, 02:58 PM UTC
Resolved
Aug 18, 2026, 04:38 PM UTC
Duration
1h 39m
Detected by Pingoru
Aug 18, 2026, 02:58 PM UTC

Update timeline

  1. investigating Aug 18, 2026, 02:58 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.

  2. investigating Aug 18, 2026, 03:01 PM UTC

    We are continuing to investigate this issue.

  3. identified Aug 18, 2026, 04:00 PM UTC

    Twilio customers may be experiencing voice call failures from T-Mobile network subscribers in the United States to a subset of Twilio United States Phone Numbers. Twilio team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

  4. resolved Aug 18, 2026, 04:38 PM UTC

    Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.