Japan SMS - Delivery degradation affecting NTT Docomo network

Incident Report for Vonage API Status

Resolved

Please be informed that SMS delivery degradation was observed between 22:30 UTC on 24 Jan and 00:30 UTC on 25 Jan towards NTT Docomo Network. It has recovered. This did not impact the domestic registration traffic.

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

Posted Jan 25, 2026 - 00:30 UTC