# User Authentication Identity Gateway API Failure Increase and High Latency for T-Mobile in United States

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 5h 14m
- started 2026-05-06 08:01 UTC
- Lookup SIM Swap, Legacy Identity MatchAndAttributes
- us
- id: DWN-3db99b4f38
- Official page: https://stspg.io/3btg6xnjzlf7

## Updates from Twilio
### 2026-05-06 08:01 UTC: investigating
Twilio customers may be experiencing User Authentication Identity Gateway API failure increase and Gateway API high latency 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.

### 2026-05-06 09:03 UTC: monitoring
Twilio customers may be experiencing User Authentication Identity Gateway API failure increase and Gateway API high latency for T-Mobile in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.

### 2026-05-06 11:09 UTC: monitoring
Twilio customers may be experiencing User Authentication Identity Gateway API failure increase and high latency for T-Mobile in the United States. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.

### 2026-05-06 11:10 UTC: monitoring
We have observed a recovery in User Authentication Identity Gateway API failure increase and Gateway API high latency 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.

### 2026-05-06 13:15 UTC: resolved
We have observed a recovery in User Authentication Identity Gateway API failure increase and high latency for T-Mobile in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

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