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Incidents across areas

10DLC MMS Messaging Incident

Incident Report for Bandwidth

Postmortem

A subset of outbound MMS messages to AT&T subscribers were intermittently unable to be delivered during the peak messaging traffic hours of 16:00 - 20:00 UTC on February 16, 17 and 18.

Bandwidth has concluded its investigation of this issue and details can be found in the following Incident Report:

20260216 | Outbound MMS to AT&T

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.

Posted Mar 09, 2026 - 09:24 EDT

Resolved

This incident has been resolved.

Posted Feb 19, 2026 - 16:26 EST

Update

We continue to observe expected MMS Messaging behavior. We will monitor to ensure prolonged stability.

Posted Feb 19, 2026 - 12:00 EST

Monitoring

Teams are observing expected messaging behavior. We will monitor for stability.

Posted Feb 18, 2026 - 16:28 EST

Investigating

Bandwidth teams are investigating an incident where 10DLC MMS messages towards AT&T destinations are failing to complete as expected.

Posted Feb 18, 2026 - 13:13 EST

This incident affected: United States Messaging Services (MMS Messaging (MM4), REST APIs - HTTP MMS Messaging).