# SMS and MMS Delivery Delays - AT&T

- Provider: [Bandwidth](https://down.guide/bandwidth)
- Level: confirmed
- Impact: Degraded
- lasted 7h 58m
- started 2026-10-19 21:38 UTC
- SMS Messaging (SMPP), MMS Messaging (MM4)
- id: DWN-7465262752
- Official page: https://stspg.io/twlmdlv8v5q7

## Updates from Bandwidth
### 2026-10-19 21:38 UTC: investigating
Teams are investigating outbound, SMS and MMS messaging delivery delays towards AT&T destinations.

### 2026-10-20 03:46 UTC: monitoring
Teams are observing expected messaging behavior and will monitor for stability.

### 2026-10-20 05:36 UTC: resolved
This incident has been resolved.

### 2026-10-20 11:03 UTC: postmortem
Between 22:27 UTC and 23:54 UTC on October 19, 2026, SMS and MMS messages sent to AT&T subscribers experienced delivery delays.
 Bandwidth has concluded its investigation of this issue and details can be found in the following Incident Report: \[https://www.bandwidth.com/support/en/articles/17780417-20261019-messaging-at-t-10dlc-mms-and-sms-delivery-delays.\](https://www.bandwidth.com/support/en/articles/17780417-20261019-messaging-at-t-10dlc-mms-and-sms-delivery-delays.) 
We are grateful you have entrusted Bandwidth as your communication partner and we are sorry if this issue resulted in any disruption to your services.

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