Outage in Vonage

China SMS - Delivery degradation of Pre-Registered brands

Resolved Minor

March 19, 2026 - Started about 11 hours ago - Lasted about 9 hours
Official incident page

Incident Report

Summary AI Generated

Vonage experienced SMS delivery degradation for domestic pre-registered brands sending messages to China due to carrier partner issues. The incident affected SMS delivery rates for businesses using pre-registered brand messaging to Chinese recipients. The issue was resolved after 8.9 hours through collaboration with carrier partners and implementation of a fix.

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. Please contact support@api.vonage.com if you have any questions

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Latest Updates ( sorted recent to last )

RESOLVED about 2 hours ago - at 03/20/2026 01:40AM

This incident has been resolved.

MONITORING about 3 hours ago - at 03/20/2026 01:11AM

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

INVESTIGATING about 11 hours ago - at 03/19/2026 04:49PM

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.

Please contact support@api.vonage.com if you have any questions

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