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Vonage API Outage History

Every past Vonage API outage tracked by IsDown, with detection times, duration, and resolution details.

There were 140 Vonage API outages since December 2025. The 140 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor March 9, 2026

March 2026: Voice CDRs Delay in EU Region

Detected Mar 9, 2026 5:15 PM EDT · Resolved Mar 10, 2026 1:23 PM EDT · Duration about 20 hours

Vonage API experienced delays in Voice Call Detail Records (CDRs) processing in the EU region, affecting the Voice API service. The incident lasted 20.1 hours before engineers identified the root cause and implemented a fix. The issue was resolved after a monitoring period to ensure the fix was effective.

Minor March 9, 2026

March 2026: Nigeria SMS - Delivery Degradation towards MTN network

Detected Mar 9, 2026 4:12 PM EDT · Resolved Mar 9, 2026 7:24 PM EDT · Duration about 3 hours

Vonage API experienced SMS delivery degradation specifically affecting messages sent to Nigeria's MTN network, impacting the SMS Middle East & Africa service component. The company worked with carrier partners to implement a fix after 3.2 hours of service disruption. The incident was resolved and the service returned to normal operation.

Minor March 9, 2026

March 2026: Indonesia SMS - Delivery degradation towards XL Network

Detected Mar 9, 2026 2:38 AM EDT · Resolved Mar 9, 2026 4:06 AM EDT · Duration about 1 hour

Vonage API experienced degraded SMS message delivery to Indonesia's XL Network, affecting the SMS APAC service. The company worked with carrier partners to implement a fix after 1.5 hours of service degradation. The incident was resolved after a brief monitoring period to ensure the fix was effective.

Minor March 7, 2026

March 2026: Bulgaria SMS - Delivery Degradation towards Vivacom network

Detected Mar 7, 2026 1:01 PM EST · Resolved Mar 7, 2026 2:40 PM EST · Duration about 2 hours

Vonage API experienced SMS delivery degradation specifically affecting messages sent to Bulgaria's Vivacom network, impacting the SMS Europe service component. The issue was resolved after 1.6 hours through collaboration with carrier partners, with a fix implemented and monitored before full resolution.

Minor March 6, 2026

March 2026: Verify TTS & TTS API Issue

Detected Mar 6, 2026 11:38 AM EST · Resolved Mar 6, 2026 12:00 PM EST · Duration 22 minutes

Vonage API experienced a potential service issue affecting Verify TTS calls and the deprecated TTS API, with possible impact to the Verify API and Legacy TTS components. The engineering team investigated the monitoring alerts for 22 minutes before resolving the incident. The issue was classified as minor with proactive customer notification while the investigation was underway.

Minor March 6, 2026

March 2026: USA SMS - SMS delivery degradation affecting 10DLC numbers sending to Verizon Wireless

Detected Mar 6, 2026 8:31 AM EST · Resolved Mar 6, 2026 12:00 PM EST · Duration about 3 hours

Vonage API experienced SMS delivery degradation for 10DLC numbers sending messages to Verizon Wireless customers in the USA, affecting the SMS North America service. The issue was caused by a carrier-side problem that Verizon Wireless investigated and resolved. The incident lasted 3.5 hours and was fully resolved after a fix was implemented and monitored.

Minor March 6, 2026

March 2026: Germany SMS - Delivery degradation towards Telefonica Germany

Detected Mar 6, 2026 1:14 AM EST · Resolved Mar 6, 2026 11:08 AM EST · Duration about 10 hours

Vonage API experienced SMS delivery degradation specifically affecting messages sent to Telefonica Germany customers for 9.9 hours. The issue impacted the SMS Europe service component, causing reduced delivery rates for messages targeting this major German carrier. Vonage worked with carrier partners to implement a fix and monitored the results before confirming full resolution.

Minor March 5, 2026

March 2026: Video Tools sessions may appear incomplete

Detected Mar 5, 2026 11:22 AM EST · Resolved Mar 5, 2026 2:31 PM EST · Duration about 3 hours

Vonage API's Video Tools experienced an issue where session data appeared incomplete or missing, affecting the Archive Inspector, Insights & Advanced Insights, and Inspector components for 3.2 hours. The service team implemented a fix and monitored the results before confirming full resolution of the incident.

Minor March 4, 2026

March 2026: Mexico SMS - Delivery Degradation towards Altan Redes Mexico

Detected Mar 4, 2026 1:36 AM EST · Resolved Mar 4, 2026 2:49 AM EST · Duration about 1 hour

Vonage API experienced SMS delivery issues to Altan Redes Mexico due to a supplier problem, causing delivery delays and message failures for both inbound and outbound SMS traffic. The issue affected SMS services in North America for 1.2 hours. A fix was implemented and the incident was resolved after monitoring confirmed the solution was effective.

Minor March 4, 2026

March 2026: Taiwan SMS - Delivery degradation towards Taiwan Mobile network

Detected Mar 4, 2026 12:29 AM EST · Resolved Mar 4, 2026 2:05 AM EST · Duration about 2 hours

Vonage API experienced SMS delivery degradation for domestic traffic to the Taiwan Mobile network, affecting the SMS APAC service. The company worked with their carrier partner to resolve the delivery issues. The incident lasted 8 minutes and has been resolved.