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.
This incident has been resolved.
A fix has been implemented and we are monitoring the results.
We have been notified by our suppliers about an SMS issue impacting messages delivery to Verizon Wireless USA.
The carrier is aware of this issue and investigating the root cause. We 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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