SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States

Incident
October 27, 1:09am

SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States

Status: in progress
Start: October 26, 11:53pm
Affected Components:
3rd Party Providers Twilio SMS Long Code, North America
Investigating

October 26, 11:53pm

October 26, 11:53pm

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. 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

October 27, 12:53am

October 27, 12:53am

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. 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

October 27, 1:09am

October 27, 1:09am

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. 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.

Monitoring

October 27, 1:09am

October 27, 1:09am

We have observed a recovery in SMS delivery receipts from a subset of Twilio Long Codes to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.