← Back to Twilio History
minor✓ Resolved

SMS Delivery Delays from a Subset of Twilio Long Codes and Toll-Free Numbers to Viaero United States

Twilio•Thu, May 21, 2026, 05:35 PM
Status
resolved
Duration
4h 39m
Updates
4
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedThu, May 21, 2026, 10:15 PM
This incident has been resolved.
monitoringThu, May 21, 2026, 08:10 PM
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.
identifiedThu, May 21, 2026, 07:00 PM
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.
identifiedThu, May 21, 2026, 05:54 PM
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.
investigatingThu, May 21, 2026, 05:35 PM
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.

📊 TECHNICAL DETAILS

Internal ID
a890eccd-00c8-4ddd-a828-e3bf32a29815
External ID
tr97nyhypz6f
🕐 Started
Thu, May 21, 2026, 05:35 PM
🔄 Last Updated
Thu, May 21, 2026, 10:15 PM
✓ Resolved
Thu, May 21, 2026, 10:15 PM
MINOR
Impact Level
4h 39m
Total Duration
4
Status Updates
Affected Components
SMS Long Code, North AmericaSMS Toll-Free, North AmericaSMS Toll-Free, North America
REQUEST COVERAGE
No article has been written for this incident yet. When 100 people request coverage, we automatically generate one.
0 / 100 requests100 more needed