Outage in Twilio
SMS Delivery Delays from a Subset of Twilio Long Codes and Toll-Free Numbers to Viaero United States
Resolved MinorIncident Report
Summary AI Generated
Twilio experienced SMS delivery delays from a subset of long codes and toll-free numbers to Viaero network subscribers in the United States for 4.7 hours. The issue affected SMS services across North America including both toll-free and long code messaging. Twilio identified the root cause and restored normal SMS delivery operations after monitoring service stability.
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero 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.
Components affected
Twilio SMS Toll-Free, North America Twilio SMS Toll-Free, North America Twilio SMS Long Code, North AmericaTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 05/21/2026 10:12PM
The incident has been resolved and SMS delivery from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero network subscribers in the United States is operating normally.
MONITORING
1 day ago - at 05/21/2026 08:10PM
We have observed a recovery in SMS delivery from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero 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.
IDENTIFIED
1 day ago - at 05/21/2026 07:00PM
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero 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
1 day ago - at 05/21/2026 05:54PM
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero 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.
INVESTIGATING
1 day ago - at 05/21/2026 05:35PM
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes and Toll-Free Numbers to Viaero 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.
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