USA SMS/MMS - Planned Maintenance affecting AT&T Network

Scheduled for Sep 23, 03:00 - 07:00 UTC

Scheduled

Between 23-Sept-2026 03:00 and 07:00 UTC, AT&T network will be performing a planned maintenance on their SMS platform.

During the maintenance window, the connection to the AT&T network will be periodically unavailable. Message delivery and processing times may be impacted. You may potentially experience SMS latency for messages sent to and from subscribers of the network, including delivery receipts.

If you have any questions, please contact api.support.vonage.com
Posted Sep 18, 2026 - 17:48 UTC
This scheduled maintenance affects: Global Connectivity (SMS North America, MMS North America).
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