← Back to Twilio History
minor✓ Resolved

SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs to Multiple Networks in United Kingdom

TwilioMon, Jun 8, 2026, 08:11 PM
Status
resolved
Duration
11h 24m
Updates
6
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedTue, Jun 9, 2026, 07:35 AM
This incident has been resolved.
monitoringTue, Jun 9, 2026, 05:28 AM
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.
identifiedTue, Jun 9, 2026, 03:25 AM
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.
identifiedMon, Jun 8, 2026, 11:12 PM
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.
identifiedMon, Jun 8, 2026, 09:12 PM
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.
identifiedMon, Jun 8, 2026, 08:12 PM
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.
investigatingMon, Jun 8, 2026, 08:11 PM
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.

📊 TECHNICAL DETAILS

Internal ID
d290110e-0385-46f9-a1ae-7a32d2024c7a
External ID
0whykjmqszrq
🕐 Started
Mon, Jun 8, 2026, 08:11 PM
🔄 Last Updated
Tue, Jun 9, 2026, 07:35 AM
✓ Resolved
Tue, Jun 9, 2026, 07:35 AM
MINOR
Impact Level
11h 24m
Total Duration
6
Status Updates
Affected Components
SMS, Europe
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