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INCIDENT RESOLVED
Twilio
✓SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United States
Updated
Resolved
14:25Started
2Timeline events
Confirmed by the official source.
Executive summary
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Summary
Twilio has confirmed delays affecting delivery receipts for messages sent from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Message delivery may succeed while delivery receipts are delayed.
What users experienced
- User impact
Customers may experience delayed SMS delivery receipts for messages sent from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States; message delivery itself may succeed.
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Started
14:2514 Sep 2026Timeline of the incident
-
Detection
Confirmed by an official service source.
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Resolution
The service is no longer reporting this incident as active.
What we know
- ✓Twilio officially reported the disruption as degraded performance affecting SMS Short Code service.
- ✓The issue concerns delayed delivery receipts, while message delivery may still succeed.
- ✓The latest provider update continued to list the incident as identified and provided an eight-hour update interval.