USA SMS & MMS - Planned maintenance affecting US Cellular Networks

Scheduled Maintenance Report for Vonage API Status

Completed

The scheduled maintenance has been completed.

Posted Mar 20, 2026 - 05:15 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Mar 19, 2026 - 21:30 UTC

Scheduled

Between 19-March-2026, 21:30 UTC and 20-March-2026, 05:15 UTC the US Cellular networks will be performing maintenance on their SMS and MMS platforms.

During the maintenance window, you may experience delayed inbound and outbound messages and delivery receipts on US Cellular networks.

Please contact https://www.vonage.com/support/ if you have any questions.

Posted Mar 11, 2026 - 20:33 UTC

This scheduled maintenance affected: Global Connectivity (SMS North America, MMS North America).