Bandwidth incident

Messaging Delivery Incident- AT&T

Bandwidth is currently experiencing a minor incident affecting SMS Messaging (SMPP) and MMS Messaging (MM4) and 1 more component, which began 2h ago. The vendor's full update timeline is below.

Started
Sep 10, 2026, 06:04 PM UTC
Resolved
Ongoing
Duration
● 2h 9m
Detected by Pingoru
Sep 10, 2026, 06:04 PM UTC

Affected components

SMS Messaging (SMPP)MMS Messaging (MM4)REST APIs - HTTP SMS MessagingREST APIs - HTTP MMS Messaging

Update timeline

  1. identified Sep 10, 2026, 06:04 PM UTC

    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.