Outage in Bandwidth
Outbound Messaging Incident
Resolved MajorIncident Report
Summary AI Generated
Bandwidth experienced a major outbound messaging incident lasting 74.9 hours where customers encountered unexpected 4452 error codes when sending SMS and MMS messages through various services including SMPP, MM4, and toll-free messaging. The incident affected all outbound messaging components, preventing customers from successfully sending messages. Teams identified the root cause and implemented mitigations, with the incident fully resolved after monitoring confirmed stable messaging behavior was restored.
Bandwidth teams are investigating an outbound messaging incident, where customers are experiencing unexpected 4452 error codes. Teams are working to restore expected messaging behavior.
Components affected
Bandwidth SMS Messaging (SMPP) Bandwidth MMS Messaging (MM4) Bandwidth Toll-Free SMS - Outbound Bandwidth Toll Free MMS - OutboundTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 2 hours ago - at 04/30/2026 03:57PM
This incident has been resolved.
MONITORING
1 day ago - at 04/29/2026 05:02PM
Teams continue to observe expected messaging behaviors, and will continue to monitor for stability.
MONITORING
2 days ago - at 04/28/2026 06:56PM
Teams are observing expected messaging behaviors, and will continue to monitor for stability.
IDENTIFIED
2 days ago - at 04/28/2026 05:52PM
Trams continue work to resolve this incident. Ongoing mitigation work is underway.
IDENTIFIED
2 days ago - at 04/28/2026 12:27PM
Trams continue work to resolve this incident. Ongoing mitigation work is underway.
IDENTIFIED
3 days ago - at 04/27/2026 07:59PM
Teams have identified the source of this incident and are working to restore expected network behavior.
INVESTIGATING
3 days ago - at 04/27/2026 07:04PM
Teams continue to investigate this incident.
INVESTIGATING
3 days ago - at 04/27/2026 03:55PM
Teams continue to investigate this incident.
INVESTIGATING
3 days ago - at 04/27/2026 01:05PM
Bandwidth teams are investigating an outbound messaging incident, where customers are experiencing unexpected 4452 error codes. Teams are working to restore expected messaging behavior.
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