Outage in Telnyx
Delayed delivery of 10DLC SMS messages to AT&T destinations
Resolved Minor
October 06, 2026 - Started 5 days ago
- Lasted 1 day
Incident Report
Summary AI Generated
Telnyx experienced delayed delivery of 10DLC SMS messages to AT&T subscribers for approximately 26 hours beginning October 6 at 15:00 UTC. Messages were accepted but not delivered on time, while other carriers remained unaffected. Normal processing was restored by October 7 at 13:00 UTC, with all queued messages successfully delivered.
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.
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Latest Updates ( sorted recent to last )
MONITORING
5 days ago - at 10/07/2026 01:03PM
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
5 days ago - at 10/06/2026 05:38PM
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.
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