Bandwidth incident

P2P Outbound Messaging Incident - AT&T

Minor Resolved View vendor source →

Bandwidth experienced a minor incident on May 6, 2026 affecting SMS Messaging (SMPP) and MMS Messaging (MM4), lasting 13h 52m. The incident has been resolved; the full update timeline is below.

Started
May 06, 2026, 11:53 PM UTC
Resolved
May 07, 2026, 01:45 PM UTC
Duration
13h 52m
Detected by Pingoru
May 06, 2026, 11:53 PM UTC

Affected components

SMS Messaging (SMPP)MMS Messaging (MM4)

Update timeline

  1. investigating May 06, 2026, 11:53 PM UTC

    Bandwidth teams are investigating an incident impacting P2P (non-10DLC) outbound messaging traffic towards AT&T destinations. Customers will see an increase in 4730 errors. Teams are working to restore expected messaging behavior.

  2. investigating May 07, 2026, 12:59 AM UTC

    We are continuing to investigate this issue.

  3. investigating May 07, 2026, 02:51 AM UTC

    We are continuing to investigate this issue.

  4. monitoring May 07, 2026, 06:12 AM UTC

    Teams are observing expected delivery results. We are monitoring for stability.

  5. monitoring May 07, 2026, 12:56 PM UTC

    Teams are observing expected delivery results. We are monitoring for stability.

  6. resolved May 07, 2026, 03:13 PM UTC

    This incident has been resolved.

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