Twilio incident
SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems United States
Resolved after 8 days 6 hours, affecting SMS Long Code, North America and SMS Short Code, North America, on June 4, 2026.
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems network subscribers in the United States is operating normally.
Affected components
Update timeline
- investigating Jun 04, 2026, 04:51 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 Jun 04, 2026, 05:51 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 Jun 04, 2026, 06:17 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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.
- identified Jun 04, 2026, 07:17 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 Jun 04, 2026, 09:18 PM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 4 hours or as soon as more information becomes available.
- identified Jun 05, 2026, 01:19 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 8 hours or as soon as more information becomes available.
- identified Jun 05, 2026, 09:20 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 16 hours or as soon as more information becomes available.
- identified Jun 06, 2026, 01:21 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 24 hours or as soon as more information becomes available.
- identified Jun 07, 2026, 01:22 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 24 hours or as soon as more information becomes available.
- identified Jun 08, 2026, 01:31 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 24 hours or as soon as more information becomes available.
- identified Jun 09, 2026, 01:37 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless network subscribers. Our team has identified the cause, and is working to resolve the issue. Additionally, we have observed a recovery in SMS delivery from Twilio to Panhandle Telecommunications Systems network subscribers. We will provide another update in 24 hours or as soon as more information becomes available.
- identified Jun 10, 2026, 01:38 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 24 hours or as soon as more information becomes available.
- identified Jun 11, 2026, 01:39 AM UTC
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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 24 hours or as soon as more information becomes available.
- monitoring Jun 11, 2026, 06:47 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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.
- monitoring Jun 11, 2026, 08:48 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems 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.
- monitoring Jun 12, 2026, 12:48 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems network subscribers in the United States and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
- monitoring Jun 12, 2026, 08:53 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems network subscribers in the United States and are monitoring service stability. We will provide another update in 16 hours or as soon as more information becomes available.
- resolved Jun 12, 2026, 11:06 PM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes and Long Codes to United Wireless and Panhandle Telecommunications Systems network subscribers in the United States is operating normally.
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