AT&T 10DLC MMS Delivery Receipt Delays

Incident Report for Telnyx

Resolved

This incident has been resolved.
Posted Dec 04, 2025 - 05:27 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Dec 03, 2025 - 16:18 UTC

Update

We're noticing a delay in receiving delivery receipts over MMS with AT&T which appears to be related to periods of high traffic.

We continue to escalate this issue with our downstream partners and will provide updates when the issue has been identified in a timely manner.

Our downstream partner continues to investigate the issue on their side. We will provide updates as we receive them.
Posted Dec 03, 2025 - 01:07 UTC

Update

We're noticing a delay in receiving delivery receipts over MMS with AT&T which appears to be related to periods of high traffic.

We continue to escalate this issue with our downstream partners and will provide updates when the issue has been identified in a timely manner.
Posted Dec 01, 2025 - 23:38 UTC

Update

10DLC MMS messages towards AT&T issues with receiving delivery receipts.
We're investigating MMS messages towards AT&T not receiving delivery receipts in a timely manner.
Posted Dec 01, 2025 - 19:23 UTC

Investigating

We are currently investigating this issue.
Posted Dec 01, 2025 - 18:42 UTC