Outage in Zipwhip
SMS Delivery Delays and Failures from a Subset of Twilio Long Codes and Alphanumeric Sender IDs to MobiFone Vietnam
Minor
March 12, 2026 - Started about 2 hours ago
Official incident page
Official incident page
Incident Report
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.
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Latest Updates ( sorted recent to last )
MONITORING
about 1 hour ago - at 03/12/2026 07:14PM
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.
IDENTIFIED
about 2 hours ago - at 03/12/2026 06:35PM
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.
IDENTIFIED
about 2 hours ago - at 03/12/2026 05:41PM
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.
INVESTIGATING
about 2 hours ago - at 03/12/2026 05:40PM
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.
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