# SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender IDs to Telkomsel Indonesia

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 21h 45m
- started 2026-09-24 06:56 UTC
- SMS, APAC
- apac
- id: DWN-79964da342
- Official page: https://stspg.io/nkl6dlnwrkpx

## Updates from Twilio
### 2026-09-24 06:56 UTC: investigating
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.

### 2026-09-24 08:02 UTC: investigating
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.

### 2026-09-24 10:02 UTC: investigating
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.

### 2026-09-24 14:03 UTC: investigating
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.

### 2026-09-24 15:46 UTC: identified
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.

### 2026-09-24 16:48 UTC: identified
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.

### 2026-09-24 18:54 UTC: identified
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.

### 2026-09-24 22:54 UTC: identified
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.

### 2026-09-25 02:34 UTC: monitoring
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.

### 2026-09-25 04:41 UTC: resolved
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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