SMS Delivery Delays from a Subset of Twilio Long Codes and Toll-Free Numbers to Viaero United States
Incident Lifecycle
Incident Timeline
Monitoring
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.
May 21, 2026 at 8:10 PM UTC
Identified
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.
May 21, 2026 at 7:00 PM UTC
Identified
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.
May 21, 2026 at 5:54 PM UTC
Investigating
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.
May 21, 2026 at 5:35 PM UTC
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