Bandwidth experienced a major incident on May 18, 2026 affecting MMS Messaging (MM4), lasting 2d. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 18, 2026, 09:57 AM UTC
Bandwidth teams are investigating an inbound MMS messaging incident. Messages from AT&T and Verizon intermittently fail to reach the Bandwidth network. Teams are working with the impacted industry vendor.
- identified May 18, 2026, 12:50 PM UTC
The source of the incident has been identified as an off network industry incident. We continue to work with industry partners to restore expected messaging behavior.
- identified May 19, 2026, 10:40 AM UTC
Bandwidth teams continue to escalate with impacted industry counterparts to restore expected messaging behavior.
- monitoring May 19, 2026, 11:19 AM UTC
Teams are observing expected inbound delivery of inbound MMS messages. We will monitor for stability.
- resolved May 20, 2026, 10:48 AM UTC
This incident has been resolved.