Bandwidth incident

Messaging Delays - AT&T

Minor Resolved View vendor source →

Bandwidth experienced a minor incident on May 11, 2026 affecting SMS Messaging (SMPP) and MMS Messaging (MM4) and 1 more component, lasting 1d 1h. The incident has been resolved; the full update timeline is below.

Started
May 11, 2026, 12:16 PM UTC
Resolved
May 12, 2026, 01:35 PM UTC
Duration
1d 1h
Detected by Pingoru
May 11, 2026, 12:16 PM UTC

Affected components

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

Update timeline

  1. investigating May 11, 2026, 12:16 PM UTC

    Bandwidth teams are investigating an incident impacting Inbound and Outbound messaging delays to and from AT&T destinations. Teams are working to restore expected delivery with this carrier.

  2. monitoring May 11, 2026, 02:06 PM UTC

    Teams are observing expected message deliverability at this time and will monitor for prolonged stability.

  3. identified May 11, 2026, 03:02 PM UTC

    Teams have identified the source of the delay and are working to restored expected messaging behavior.

  4. identified May 11, 2026, 06:45 PM UTC

    Teams continue to investigate this incident.

  5. monitoring May 12, 2026, 12:50 AM UTC

    Teams are observing expected network performance. We will monitor for stability.

  6. resolved May 12, 2026, 08:35 PM UTC

    This incident has been resolved.