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minor✓ Resolved

SMS Delivery Delays and Failures from a Subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone Vietnam

Twilio•Thu, Mar 12, 2026, 05:40 PM
Status
resolved
Duration
3h 30m
Updates
4
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedThu, Mar 12, 2026, 09:10 PM
This incident has been resolved.
monitoringThu, Mar 12, 2026, 07:14 PM
We have observed a recovery in SMS delivery from a subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone network subscribers in Vietnam and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
identifiedThu, Mar 12, 2026, 06:35 PM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone network subscribers in Vietnam. Our team has identified the cause, and continues working to resolve the issue. We will provide another update in 2 hour or as soon as more information becomes available.
identifiedThu, Mar 12, 2026, 05:41 PM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone network subscribers in Vietnam. 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, Mar 12, 2026, 05:40 PM
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone network subscribers in Vietnam. 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
fc44220f-6263-4215-89ae-6acf0c0fc73a
External ID
gwwdp2ksnxw4
🕐 Started
Thu, Mar 12, 2026, 05:40 PM
🔄 Last Updated
Thu, Mar 12, 2026, 09:10 PM
✓ Resolved
Thu, Mar 12, 2026, 09:10 PM
MINOR
Impact Level
3h 30m
Total Duration
4
Status Updates
Affected Components
SMS, APAC
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