Twilio incident
MMS Delivery Delays from Twilio Short Codes to AT&T United States
Resolved after 5 hours 27 minutes, affecting MMS Short Code, North America, on May 18, 2026.
The incident has been resolved and MMS delivery from Twilio Short Codes to AT&T network subscribers in the United States is operating normally.
Affected components
Update timeline
- investigating May 18, 2026, 10:09 PM UTC
Twilio customers may be experiencing MMS delivery delays from Twilio Short 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.
- identified May 18, 2026, 10:22 PM UTC
Twilio customers may be experiencing MMS delivery delays from Twilio Short 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.
- identified May 18, 2026, 11:23 PM UTC
Twilio customers may be experiencing MMS delivery delays from Twilio Short 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 2 hours or as soon as more information becomes available.
- identified May 19, 2026, 01:23 AM UTC
Twilio customers may be experiencing MMS delivery delays from Twilio Short 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 4 hours or as soon as more information becomes available.
- monitoring May 19, 2026, 01:30 AM UTC
We have observed a recovery in MMS delivery from Twilio Short 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.
- resolved May 19, 2026, 03:36 AM UTC
The incident has been resolved and MMS delivery from Twilio Short Codes to AT&T network subscribers in the United States is operating normally.
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