Twilio incident

SMS Delivery Receipt Delays from Twilio Phone Numbers to Algar Telecom Brazil

Resolved after 1 day 6 hours, affecting SMS, Latin America, on May 31, 2026.

resolved Jun 01, 2026, 12:48 PM UTC

The incident has been resolved and SMS delivery receipts from Twilio Phone Numbers to Algar Telecom network subscribers in Brazil is operating normally.

Started
May 31, 2026, 05:50 AM UTC
Resolved
Jun 01, 2026, 12:48 PM UTC
Duration
1d 6h
Detected by Pingoru
May 31, 2026, 05:50 AM UTC

Affected components

SMS, Latin America

Update timeline

  1. investigating May 31, 2026, 05:50 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Algar Telecom 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. investigating May 31, 2026, 06:56 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Algar Telecom 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 2 hours or as soon as more information becomes available.

  3. identified May 31, 2026, 07:23 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Algar Telecom 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.

  4. identified May 31, 2026, 08:23 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Algar Telecom 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.

  5. identified May 31, 2026, 10:23 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Algar Telecom 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.

  6. identified May 31, 2026, 02:23 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Algar Telecom 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.

  7. identified May 31, 2026, 10:24 PM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Algar Telecom 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.

  8. monitoring Jun 01, 2026, 10:46 AM UTC

    We have observed a recovery in SMS delivery receipts from Twilio to Algar Telecom 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 Jun 01, 2026, 12:48 PM UTC

    The incident has been resolved and SMS delivery receipts from Twilio Phone Numbers to Algar Telecom network subscribers in Brazil is operating normally.

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