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Outage in Twilio

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

Resolved Minor
April 27, 2026 - Started about 21 hours ago - Lasted about 11 hours
Official incident page

Incident Report

Summary AI Generated

Twilio experienced SMS delivery delays and failures affecting messages sent from a subset of alphanumeric sender IDs and long codes to Jazz network subscribers in Pakistan. The issue impacted Twilio's SMS service in the APAC region for 10.6 hours. The incident was resolved and SMS delivery to Jazz Pakistan subscribers returned to normal operation.

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.
Components affected
Twilio SMS, APAC

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Latest Updates ( sorted recent to last )
RESOLVED about 10 hours ago - at 04/28/2026 08:04AM

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.

MONITORING about 20 hours ago - at 04/27/2026 10:46PM

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.

IDENTIFIED about 20 hours ago - at 04/27/2026 10:35PM

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.

IDENTIFIED about 21 hours ago - at 04/27/2026 09:34PM

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.

INVESTIGATING about 21 hours ago - at 04/27/2026 09:29PM

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.

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