SMS Delivery Failures from a Subset of AT&T Numbers in the United States
View the provider incident record →Current answer
Heymarket experienced a minor incident: SMS Delivery Failures from a Subset of AT&T Numbers in the United States. ServiceAlert observed recovery on Sep 9, 2026.
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Incident Lifecycle
Affected Components
Messaging
Twilio SMS
Twilio MMS
Incident Timeline
Monitoring
We have observed a recovery in SMS delivery from a subset of phone 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.
Sep 9, 2026 at 8:47 PM UTC
Identified
We are continuing to work on a fix for this issue.
Sep 9, 2026 at 7:36 PM UTC
Identified
Customers may be experiencing SMS delivery failures from a subset of phone numbers to AT&T network subscribers in the United States. Our Carrier Team has identified the cause and is working to resolve the issue. We will provide another update as soon as more information becomes available.
Sep 9, 2026 at 7:36 PM UTC
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