Outage in Vonage API

China SMS - Delivery degradation of Pre-Registered brands

Resolved Minor

March 31, 2026 - Started 4 days ago - Lasted about 3 hours
Official incident page

Incident Report

Summary AI Generated

Vonage API experienced SMS delivery degradation for domestic pre-registered brands sending messages to China, affecting the SMS APAC service. The company worked with carrier partners to implement a fix after 3 hours of service impact. The incident was resolved and monitored to ensure stable delivery performance.

Please be advised that we are observing SMS delivery degradation for domestic pre-registered brands towards China. 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

Components affected

Vonage API SMS APAC

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Latest Updates ( sorted recent to last )

RESOLVED 4 days ago - at 03/31/2026 08:04PM

This incident has been resolved.

MONITORING 4 days ago - at 03/31/2026 07:22PM

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

INVESTIGATING 4 days ago - at 03/31/2026 05:07PM

Please be advised that we are observing SMS delivery degradation for domestic pre-registered brands towards China.

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

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