Bandwidth experienced a minor incident on May 12, 2026 affecting SMS Messaging (SMPP) and MMS Messaging (MM4) and 1 more component, lasting 2h 8m. The incident has been resolved; the full update timeline is below.
Affected components
SMS Messaging (SMPP)MMS Messaging (MM4)Line Feature Management
Update timeline
- investigating May 12, 2026, 08:13 PM UTC
Teams are investigating an incident impacting outbound SMS and MMS messaging. Customers may experience increased (4)476 errors on fully provisioned 10DLC numbers.
- monitoring May 12, 2026, 09:47 PM UTC
Teams are observing expected messaging behavior and will monitor for prolonged stability.
- resolved May 12, 2026, 10:22 PM UTC
This incident has been resolved.