Twilio incident
SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender IDs to Telkomsel Indonesia
Resolved after 21 hours 44 minutes, affecting SMS, APAC, on September 24, 2026.
The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia is operating normally.
Affected components
Update timeline
- investigating Sep 24, 2026, 06:56 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- investigating Sep 24, 2026, 08:02 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
- investigating Sep 24, 2026, 10:02 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
- investigating Sep 24, 2026, 02:03 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
- identified Sep 24, 2026, 03:46 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. 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.
- identified Sep 24, 2026, 04:48 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. 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 Sep 24, 2026, 06:54 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. 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.
- identified Sep 24, 2026, 10:54 PM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia. 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.
- monitoring Sep 25, 2026, 02:34 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- resolved Sep 25, 2026, 04:41 AM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs to Telkomsel network subscribers in Indonesia is operating normally.
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