Minor incident

Twilio: SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender Type to Jazz Pakistan

Affected: SMS, APAC

Current status of Twilio: Minor issues — live Twilio status

Timeline

1. Oct 21, 2026, 16:42 UTC
   investigating
   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs 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.
2. Oct 21, 2026, 16:49 UTC
   identified
   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs 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.
3. Oct 21, 2026, 17:58 UTC
   identified
   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs 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.
4. Oct 21, 2026, 19:59 UTC
   identified
   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs 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 4 hours or as soon as more information becomes available.
5. Oct 21, 2026, 21:06 UTC
   monitoring
   We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender Type 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.
6. Oct 21, 2026, 22:43 UTC
   resolved
   The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender Type to Jazz network subscribers in Pakistan is operating normally.

Updates as published by Twilio (original).