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minor✓ Resolved

SMS Delivery Delays and Failures From a Subset of Twilio Short Codes to Cellularone NE Arizona United States

Twilio•Sun, May 3, 2026, 11:29 PM
Status
resolved
Duration
7h 30m
Updates
4
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedMon, May 4, 2026, 07:00 AM
This incident has been resolved.
monitoringMon, May 4, 2026, 04:32 AM
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone NE Arizona network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
monitoringMon, May 4, 2026, 02:32 AM
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone NE Arizona 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.
identifiedMon, May 4, 2026, 12:30 AM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Cellularone 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.
identifiedSun, May 3, 2026, 11:29 PM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Cellularone NE Arizona 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.

📊 TECHNICAL DETAILS

Internal ID
ffeccd31-0aeb-4538-b023-074fb41fcf57
External ID
s9prxyn64dd1
🕐 Started
Sun, May 3, 2026, 11:29 PM
🔄 Last Updated
Mon, May 4, 2026, 07:00 AM
✓ Resolved
Mon, May 4, 2026, 07:00 AM
MINOR
Impact Level
7h 30m
Total Duration
4
Status Updates
Affected Components
SMS Short Code, North America
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