SMS Delivery Delays and Failures From a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz Pakistan

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz network subscribers in Pakistan is operating normally.

Posted Apr 28, 2026 - 01:04 PDT

Monitoring

We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz network subscribers in Pakistan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Apr 27, 2026 - 15:46 PDT

Update

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz network subscribers in Pakistan. 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 Apr 27, 2026 - 15:35 PDT

Identified

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz network subscribers in Pakistan. 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 Apr 27, 2026 - 14:34 PDT

Investigating

Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Jazz network subscribers in Pakistan. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Apr 27, 2026 - 14:29 PDT

This incident affected: CARRIER NETWORK (SMS, APAC).