← Back to Twilio History
minor✓ Resolved

SMS Delivery Delays and Failures from a Subset of Twilio Phone Numbers to China Mobile Hong Kong

Twilio•Thu, May 21, 2026, 05:27 AM
Status
resolved
Duration
6h 22m
Updates
4
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedThu, May 21, 2026, 11:50 AM
This incident has been resolved.
monitoringThu, May 21, 2026, 07:43 AM
We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to China Mobile network subscribers in Hong Kong and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
monitoringThu, May 21, 2026, 05:43 AM
We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to China Mobile network subscribers in Hong Kong 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, 05:28 AM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to China Mobile network subscribers in Hong Kong. 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, 05:27 AM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to China Mobile network subscribers in Hong Kong. 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
fbc45528-369f-4896-9ec6-7bf98cbb4264
External ID
xx6pgbzyq9s8
🕐 Started
Thu, May 21, 2026, 05:27 AM
🔄 Last Updated
Thu, May 21, 2026, 11:50 AM
✓ Resolved
Thu, May 21, 2026, 11:50 AM
MINOR
Impact Level
6h 22m
Total Duration
4
Status Updates
Affected Components
SMS, APAC
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