# Messaging Delivery Incident- AT&T

- Provider: [Bandwidth](https://down.guide/bandwidth)
- Level: confirmed
- Impact: Degraded
- lasted 16h 16m
- started 2026-09-10 23:24 UTC
- SMS Messaging (SMPP), MMS Messaging (MM4), REST APIs - HTTP SMS Messaging +1
- id: DWN-7fe03a3c50
- Official page: https://stspg.io/5jk78vfn7bmj

## Updates from Bandwidth
### 2026-09-10 18:04 UTC: identified
Bandwidth teams have identified an off-network incident resulting in intermittent messages delivery failures to AT&T destinations. These failures result in a 4740 code. Teams are working with AT&T to restore expected delivery of messages.

### 2026-09-10 23:24 UTC: identified
Bandwidth teams continue to partner with the impacted industry provider.

### 2026-09-11 13:17 UTC: identified
Bandwidth teams continue to partner with the impacted industry provider. Updates will be provided as they become available.

### 2026-09-11 15:40 UTC: resolved
This incident has been resolved.

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