SMS Delivery Delays and Failures from a Subset of Twilio Long Codes to U Mobile Malaysia

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia is operating normally.
Posted May 11, 2026 - 23:36 PDT

Update

We have observed a recovery in SMS delivery from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Posted May 11, 2026 - 22:19 PDT

Monitoring

We have observed a recovery in SMS delivery from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
Posted May 11, 2026 - 20:18 PDT

Update

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia. 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.
Posted May 11, 2026 - 17:31 PDT

Update

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia. 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.
Posted May 11, 2026 - 13:30 PDT

Update

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia. 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.
Posted May 11, 2026 - 11:30 PDT

Identified

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia. 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.
Posted May 11, 2026 - 10:30 PDT

Investigating

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to U Mobile network subscribers in Malaysia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Posted May 11, 2026 - 10:22 PDT
This incident affected: CARRIER NETWORK (SMS, APAC).