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Vonage: USA SMS - Delivery Degradation affecting T-mobile Network through a subset of 10DLC numbers

Affected components: Global Connectivity - SMS North AmericaSMS North America

Timeline of updates

1. investigating2026-10-01 09:10 UTC

   Please be informed that we are currently observing SMS delivery degradation towards T-mobile Network in USA through a subset of our 10DLC numbers. We are working with our carrier partners to resolve the issue and will issue an update as soon as more information becomes available. If you have any questions, please contact api.support.vonage.com

2. monitoring2026-10-01 13:04 UTC

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

3. resolved2026-10-01 15:26 UTC

   This incident has been resolved.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Vonage profile · Recent Vonage incidents · Markdown · JSON