# SMS Delivery Delays From a Subset of Twilio Short Codes to AT&T United States

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 1h 41m
- started 2026-03-17 14:25 UTC
- SMS Short Code, North America
- us
- id: DWN-7a73b7d87d
- Official page: https://stspg.io/7r0r70tbk14x

## Updates from Twilio
### 2026-03-17 14:25 UTC: investigating
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to AT&T network subscribers 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.

### 2026-03-17 15:25 UTC: investigating
We continue experiencing SMS delivery delays from a subset of Twilio Short Codes to AT&T network subscribers in the United States. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

### 2026-03-17 16:06 UTC: resolved
We have fully investigated the SMS delivery delays from a subset of Twilio Short Codes to AT&T network subscribers in the United States, and it was determined that the impact was limited to a small set of customers, who have been contacted individually to address any concerns. All systems are operational.

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