Twilio incident
SMS Delivery Receipt Delays from Twilio Phone Numbers to Algar Telecom Brazil
Twilio experienced a minor incident on May 31, 2026 affecting SMS, Latin America, lasting 1d 6h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.