Zingle incident
SMS Delivery Delays from a Subset of Twilio Short Codes to T-Mobile United States
Resolved after 5 days 8 hours, on May 13, 2026.
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to affected networks in the United States is operating normally.
Update timeline
- monitoring May 13, 2026, 01:27 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to T-Mobile 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.
- monitoring May 13, 2026, 01:36 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to T-Mobile 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.
- monitoring May 13, 2026, 01:53 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to network subscribers on multiple networks 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.
- monitoring May 13, 2026, 02:39 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to network subscribers on multiple networks 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 May 13, 2026, 02:40 PM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to affected networks in the United States is operating normally.
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