Twilio incident
MMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States
Resolved after 5 hours 49 minutes, affecting MMS Long Code, North America and MMS Short Code, North America and 1 more, on August 10, 2026.
The incident has been resolved and MMS delivery receipts from a subset of Twilio Long Codes to AT&T network subscribers in the United States is operating normally.
Affected components
Update timeline
- investigating Aug 10, 2026, 11:45 PM UTC
Twilio customers may be experiencing MMS 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.
- identified Aug 10, 2026, 11:50 PM UTC
Twilio customers may be experiencing MMS delivery receipt delays from Twilio 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.
- identified Aug 11, 2026, 12:50 AM UTC
Twilio customers may be experiencing MMS 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 2 hours or as soon as more information becomes available.
- monitoring Aug 11, 2026, 02:38 AM UTC
We have observed a recovery in MMS 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.
- monitoring Aug 11, 2026, 04:44 AM UTC
We have observed a recovery in MMS 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 4 hours or as soon as more information becomes available.
- resolved Aug 11, 2026, 05:35 AM UTC
The incident has been resolved and MMS delivery receipts from a subset of Twilio Long Codes to AT&T network subscribers in the United States is operating normally.
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