# User Authentication Identity SNA Failures for T-Mobile in United States

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 5h 42m
- started 2026-04-13 18:38 UTC
- Verify Silent Network Auth, Lookup SIM Swap
- us
- id: DWN-302cf2c59e
- Official page: https://stspg.io/29jszd5z4vsf

## Updates from Twilio
### 2026-04-13 18:38 UTC: investigating
Twilio customers may be experiencing User Authentication Identity API errors for T-Mobile in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-04-13 18:58 UTC: identified
Twilio customers may be experiencing User Authentication Identity API errors for T-Mobile in the United States. 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.

### 2026-04-13 20:08 UTC: identified
Twilio customers may be experiencing User Authentication Identity SNA failures for T-Mobile in the United States. 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.

### 2026-04-13 21:14 UTC: identified
Twilio customers may be experiencing User Authentication Identity SNA failures for T-Mobile in the United States. 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.

### 2026-04-13 22:14 UTC: monitoring
We have observed a recovery in User Authentication Identity for T-Mobile in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

### 2026-04-14 00:20 UTC: resolved
The incident has been resolved and User Authentication Identity for T-Mobile in the United States is operating normally.

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