Vonage API incident
USA SMS/MMS - Delivery Degradation affecting SMS/MMS traffic towards T-Mobile Network
Vonage API experienced a minor incident on July 13, 2026 affecting SMS North America and MMS North America, lasting 6h 53m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jul 13, 2026, 03:53 PM UTC
We are currently experiencing message delivery issues impacting SMS traffic towards T-Mobile USA. As a result, you may experience delays, failures or missing delivery receipts for outbound messages. Our supplier is aware of this issue and investigating the root cause as a matter of urgency. We will post an update as soon as more information becomes available. If you have any questions, please contact api.support.vonage.com
- investigating Jul 13, 2026, 05:00 PM UTC
We are continuing to investigate this issue.
- monitoring Jul 13, 2026, 09:04 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Jul 13, 2026, 10:47 PM UTC
This incident has been resolved.