Twilio incident

SMS Delivery Receipt Delays from Twilio to CTBC Brazil

Minor Resolved View vendor source →

Twilio experienced a minor incident on September 28, 2026 affecting SMS, Latin America, lasting 1d 16h. The incident has been resolved; the full update timeline is below.

Started
Sep 28, 2026, 01:25 PM UTC
Resolved
Sep 30, 2026, 05:45 AM UTC
Duration
1d 16h
Detected by Pingoru
Sep 28, 2026, 01:25 PM UTC

Affected components

SMS, Latin America

Update timeline

  1. investigating Sep 28, 2026, 01:25 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

  2. identified Sep 28, 2026, 02:12 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

  3. identified Sep 28, 2026, 03:17 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.

  4. identified Sep 28, 2026, 05:22 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 4 hours or as soon as more information becomes available.

  5. identified Sep 28, 2026, 09:23 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 8 hours or as soon as more information becomes available.

  6. identified Sep 29, 2026, 05:23 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 16 hours or as soon as more information becomes available.

  7. identified Sep 29, 2026, 09:24 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to CTBC network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 24 hours or as soon as more information becomes available.

  8. monitoring Sep 30, 2026, 03:43 AM UTC

    We have observed a recovery in SMS delivery receipts from Twilio to CTBC network subscribers in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

  9. resolved Sep 30, 2026, 05:45 AM UTC

    The incident has been resolved and SMS delivery receipts from Twilio to CTBC network subscribers in Brazil are operating normally.