SMS Delivery Receipt Delays from Twilio to Surf Telecom Brazil

Incident Report for Twilio

Resolved

We have completed our investigation. This event did not cause performance degradation beyond the expected behavior for this Brazilian carrier, which may retry delivery attempts for up to 24 hours before setting a final status. All systems are operating normally.

Posted Oct 20, 2026 - 13:12 PDT

Update

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Surf 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 24 hours or as soon as more information becomes available.

Posted Oct 20, 2026 - 03:07 PDT

Update

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

Posted Oct 19, 2026 - 10:58 PDT

Update

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

Posted Oct 19, 2026 - 02:58 PDT

Update

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

Posted Oct 18, 2026 - 22:50 PDT

Update

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

Posted Oct 18, 2026 - 20:49 PDT

Identified

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

Posted Oct 18, 2026 - 19:49 PDT

Investigating

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

Posted Oct 18, 2026 - 19:41 PDT

This incident affected: CARRIER NETWORK (SMS, Latin America).