USA MMS - degradation affecting 10DLC MMS messages to AT&T network
Incident Lifecycle
Incident Timeline
Monitoring
A fix has been implemented and we are monitoring the results.
May 14, 2026 at 11:47 PM UTC
Investigating
We have been notified by our US supplier about an issue impacting MMS messages sent from 10DLC numbers to AT&T network. You might experience missing or delayed MTs, MOs, or delivery receipts.
The supplier is aware of this issue and investigating the root cause. We will issue an update as soon as more information becomes available.
If you have any questions, please contact api.support.vonage.com
The supplier is aware of this issue and investigating the root cause. We will issue an update as soon as more information becomes available.
If you have any questions, please contact api.support.vonage.com
May 14, 2026 at 5:45 PM UTC
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