# SMS Delivery Delays and Failures to Viettel in Vietnam

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 5h 25m
- started 2026-03-22 07:29 UTC
- SMS, APAC
- apac
- id: DWN-61153e4696
- Official page: https://stspg.io/g1vcl8hhxqxj

## Updates from Twilio
### 2026-03-22 07:29 UTC: investigating
We are experiencing SMS delivery delays when sending messages to Viettel in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-03-22 08:30 UTC: investigating
We are experiencing SMS delivery delays when sending messages to Viettel in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hour or as soon as more information becomes available.

### 2026-03-22 10:31 UTC: investigating
We are experiencing SMS delivery delays when sending messages to Viettel in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

### 2026-03-22 12:54 UTC: resolved
This incident has been resolved.

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