Current answer
Bandwidth experienced a minor incident: Messaging Delivery Incident- AT&T. ServiceAlert observed recovery on Sep 11, 2026.
Provider-reported start: . Notice published: .
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Incident Lifecycle
Affected Components
SMS Messaging (SMPP)
MMS Messaging (MM4)
REST APIs - HTTP SMS Messaging
REST APIs - HTTP MMS Messaging
Incident Timeline
Identified
Bandwidth teams continue to partner with the impacted industry provider. Updates will be provided as they become available.
Sep 11, 2026 at 1:17 PM UTC
Identified
Bandwidth teams continue to partner with the impacted industry provider.
Sep 10, 2026 at 11:24 PM UTC
Identified
Bandwidth teams have identified an off-network incident resulting in intermittent messages delivery failures to AT&T destinations. These failures result in a 4740 code. Teams are working with AT&T to restore expected delivery of messages.
Sep 10, 2026 at 6:04 PM UTC
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