Vonage API incident

USA MMS - degradation affecting 10DLC MMS messages to AT&T network

Minor Resolved View vendor source →

Vonage API experienced a minor incident on May 14, 2026 affecting MMS North America, lasting 6h 22m. The incident has been resolved; the full update timeline is below.

Started
May 14, 2026, 05:45 PM UTC
Resolved
May 15, 2026, 12:08 AM UTC
Duration
6h 22m
Detected by Pingoru
May 14, 2026, 05:45 PM UTC

Affected components

MMS North America

Update timeline

  1. investigating May 14, 2026, 05:45 PM UTC

    We have been notified by our US supplier about an issue impacting MMS messages sent from 10DLC numbers to AT&T network. You might experience missing or delayed MTs, MOs, or delivery receipts. The supplier is aware of this issue and investigating the root cause. We will issue an update as soon as more information becomes available. If you have any questions, please contact api.support.vonage.com

  2. monitoring May 14, 2026, 11:47 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved May 15, 2026, 12:08 AM UTC

    This incident has been resolved.