Vonage API incident
USA SMS - Delivery Degradation affecting traffic towards T-Mobile Network
Vonage API experienced a minor incident on July 9, 2026 affecting SMS North America, lasting 3h 15m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jul 09, 2026, 10:13 AM 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 09, 2026, 10:20 AM UTC
We are continuing to investigate this issue.
- monitoring Jul 09, 2026, 12:05 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Jul 09, 2026, 01:28 PM UTC
This incident has been resolved.