Outage in Twilio
SMS Delivery Report Delays from a Subset of Twilio Long Codes and Toll-Free Numbers to AT&T United States
Resolved MinorIncident Report
Summary AI Generated
Twilio experienced SMS delivery delays from a subset of Long Codes and Toll-Free Numbers to AT&T network subscribers in the United States for 12 hours. The issue affected SMS delivery report timing rather than actual message delivery, impacting North American SMS services using both Long Code and Toll-Free number types. Twilio identified the root cause and restored normal SMS delivery operations after monitoring service stability.
Twilio customers may be experiencing SMS delivery delays from Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Components affected
Twilio SMS Long Code, North America Twilio SMS Long Code, North America Twilio SMS Toll-Free, North America Twilio SMS Toll-Free, North AmericaTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
16 days ago - at 05/12/2026 01:04AM
The incident has been resolved and SMS delivery from a subset of Twilio Long Codes and Toll-Free Numbers to AT&T network subscribers in the United States is operating normally.
MONITORING
16 days ago - at 05/11/2026 10:53PM
We have observed a recovery in SMS delivery from a subset of Twilio Long Codes and Toll-Free Numbers 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.
IDENTIFIED
16 days ago - at 05/11/2026 07:23PM
Twilio customers may be experiencing SMS delivery report delays from a subset of Twilio Long Codes and Toll-Free Numbers to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
IDENTIFIED
16 days ago - at 05/11/2026 05:22PM
Twilio customers may be experiencing SMS delivery report delays from a subset of Twilio Long Codes and Toll-Free Numbers to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
IDENTIFIED
16 days ago - at 05/11/2026 04:21PM
Twilio customers may be experiencing SMS delivery report delays from a subset of Twilio Long Codes and Toll-Free Numbers to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
INVESTIGATING
16 days ago - at 05/11/2026 04:16PM
Twilio customers may be experiencing SMS delivery report delays from Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
INVESTIGATING
16 days ago - at 05/11/2026 03:22PM
We are continuing to investigate this issue.
INVESTIGATING
16 days ago - at 05/11/2026 02:14PM
Twilio customers may be experiencing SMS delivery delays from Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
INVESTIGATING
16 days ago - at 05/11/2026 01:05PM
Twilio customers may be experiencing SMS delivery delays from Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
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