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Messaging Delivery Incident- AT&T

Incident Report for Bandwidth

Update

Band with teams continue to partner with the impacted industry provider.

Posted Sep 10, 2026 - 19:24 EDT

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.

Posted Sep 10, 2026 - 14:04 EDT

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