Twilio incident
SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs to Multiple Networks in United Kingdom
Resolved after 11 hours 19 minutes, affecting SMS, Europe, on June 8, 2026.
The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs to network subscribers on affected networks in the United Kingdom is operating normally.
Affected components
Update timeline
- investigating Jun 08, 2026, 08:11 PM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- identified Jun 08, 2026, 08:12 PM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom. 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 08, 2026, 09:12 PM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom. 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 08, 2026, 11:12 PM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom. 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 09, 2026, 03:25 AM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom. 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.
- monitoring Jun 09, 2026, 05:28 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in the United Kingdom and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- resolved Jun 09, 2026, 07:30 AM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs to network subscribers on affected networks in the United Kingdom is operating normally.
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