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INCIDENT IN PROGRESS
Twilio
✓SMS Delivery Receipt Delays from Twilio to CTBC Brazil
Updated
Confirmed disruption
06:25Started
1Timeline events
Confirmed by the official source.
Executive summary
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Summary
Twilio has confirmed delays in SMS delivery receipts for messages sent to CTBC network subscribers in Brazil. Message delivery may succeed, but delivery receipts may be delayed. Twilio has identified the cause and is working to resolve the issue.
What users experienced
- User impact
Messages to CTBC network subscribers in Brazil may be delivered successfully while their delivery receipts are delayed.
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Started
06:2528 Sep 2026Timeline of the incident
-
Detection
Confirmed by an official service source.
What we know
- ✓Twilio classified the impact as minor and the affected SMS component as experiencing degraded performance.
- ✓The issue began at approximately 06:25 on September 28, 2026.
- ✓Twilio's latest update changed the incident status from investigating to identified.