Bandwidth experienced a minor incident on October 19, 2026 affecting SMS Messaging (SMPP) and MMS Messaging (MM4), lasting 7h 58m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 19, 2026, 09:38 PM UTC
Teams are investigating outbound, SMS and MMS messaging delivery delays towards AT&T destinations.
- monitoring Oct 20, 2026, 03:46 AM UTC
Teams are observing expected messaging behavior and will monitor for stability.
- resolved Oct 20, 2026, 05:36 AM UTC
This incident has been resolved.
- postmortem Oct 20, 2026, 11:03 AM UTC
Between 22:27 UTC and 23:54 UTC on October 19, 2026, SMS and MMS messages sent to AT&T subscribers experienced delivery delays. Bandwidth is continuing to investigate this issue to identify all actions necessary to prevent this from recurring and will update this post with an Incident Report after investigations have concluded. We are grateful you have entrusted Bandwidth as your communication partner and we are sorry if this issue resulted in any disruption to your services.