# Telnyx: Delayed delivery of 10DLC SMS messages to AT&T destinations

- Provider: [Telnyx](https://outages.live/telnyx.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-10-06 17:38 UTC
- Resolved: 2026-10-07 19:30 UTC (lasted 25 h 51 min)
- Official update: https://status.telnyx.com

## Updates from Telnyx

### resolved, 2026-10-07 19:30 UTC

Message processing has returned to normal, and all queued messages have been delivered. SMS messages sent over 10DLC long code numbers to AT&T subscribers continue being delivered without delay after monitoring period.

### monitoring, 2026-10-07 13:03 UTC

Message processing has returned to normal, and all queued messages have been delivered. SMS messages sent over 10DLC long code numbers to AT&T subscribers are now being delivered without delay. We are continuing to monitor traffic closely while our downstream partner and AT&T complete their investigation into the root cause. We will post a final update once the incident is resolved.

### investigating, 2026-10-06 17:38 UTC

We are investigating delays in the delivery of SMS messages sent over 10DLC long code numbers to AT&T subscribers, beginning October 6 at around 15:00 UTC. Messages are being accepted but may be delivered later than expected to AT&T handsets. Messages to other carriers are not affected. Our team is working with our downstream partner and AT&T to identify the cause and restore normal processing. We will provide further updates as more information becomes available.