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minor✓ Resolved
SMS Delivery Failures from a Subset of Twilio Long Codes to AT&T United States
Status
resolved
Duration
3h 56m
Updates
4
Coverage
0 articles
INCIDENT TIMELINE
✓ ResolvedWed, Sep 9, 2026, 10:55 PM
This incident has been resolved.
monitoringWed, Sep 9, 2026, 10:20 PM
We have observed a recovery in SMS delivery 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 4 hours or as soon as more information becomes available.
monitoringWed, Sep 9, 2026, 08:19 PM
We have observed a recovery in SMS delivery 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.
identifiedWed, Sep 9, 2026, 07:22 PM
Twilio customers may be experiencing SMS delivery failures 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. We will provide another update in 1 hour or as soon as more information becomes available.
investigatingWed, Sep 9, 2026, 06:58 PM
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes and 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.
📊 TECHNICAL DETAILS
Internal ID
cd4ad3c3-074e-4ec5-acfd-d61f0d326735
External ID
5gmw6sbff140
🕐 Started
Wed, Sep 9, 2026, 06:58 PM
🔄 Last Updated
Wed, Sep 9, 2026, 10:55 PM
✓ Resolved
Wed, Sep 9, 2026, 10:55 PM
MINOR
Impact Level
3h 56m
Total Duration
4
Status Updates
Affected Components
SMS Long Code, North America
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