# SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Viaero United States

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 1d 19h
- started 2026-03-19 01:08 UTC
- SMS Short Code, North America
- us
- id: DWN-4f4fb8de2f
- Official page: https://stspg.io/ndlvvvdfh58f

## Updates from Twilio
### 2026-03-19 01:08 UTC: investigating
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-03-19 02:05 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-03-19 03:02 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hour or as soon as more information becomes available.

### 2026-03-19 04:59 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 4 hours or as soon as more information becomes available.

### 2026-03-19 08:49 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 8 hours or as soon as more information becomes available.

### 2026-03-19 16:49 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 16 hours or as soon as more information becomes available.

### 2026-03-20 08:42 UTC: identified
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 24 hours or as soon as more information becomes available.

### 2026-03-20 16:40 UTC: monitoring
We have observed a recovery in SMS delivery receipts from a subset of Twilio Short Codes to Viaero network subscribers 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.

### 2026-03-20 18:45 UTC: monitoring
We have observed a recovery in SMS delivery receipts from a subset of Twilio Short Codes to Viaero network subscribers 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.

### 2026-03-20 20:26 UTC: resolved
We are no longer experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Viaero network subscribers in the United States. This incident has been resolved.

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