Twilio incident
SMS Delivery Failures from a Subset of Twilio Short Codes to Verizon United States
Twilio experienced a minor incident on May 10, 2026 affecting SMS Short Code, North America, lasting 4h 9m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 10, 2026, 12:21 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Verizon 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.
- investigating May 10, 2026, 01:22 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Verizon network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
- identified May 10, 2026, 03:27 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Verizon 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 10, 2026, 04:30 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Verizon 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 10, 2026, 04:31 PM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to Verizon network subscribers in the United States is operating normally.