System Status

This page offers API uptime information for TeleSign services, in addition to incident history reports and service issues alerts.
Operator Service Alert - Planned Maintenance - United States Cellular Corp USA - 2019-01-09
Scheduled Maintenance Report for TeleSign System Status
The scheduled maintenance has been completed.
Posted 6 months ago. Jan 10, 2019 - 02:00 PST
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted 6 months ago. Jan 09, 2019 - 23:00 PST
Issue: US Operator - Cellular Corp USA Maintenance

Start Date: 2019-01-09
Start Time: 23:00 PST
End Date: 2019-01-10
End Time: 02:00 PST

We have received notification that US Operator Cellular Corp USA will be performing planned maintenance on the date and time specified above. During this time period, customers with Dedicated Short Codes that send SMS messages to Cellular Corp USA users may experience a temporary delay in message delivery, so we kindly ask that you plan accordingly. Other US operators will not be affected by this Cellular Corp USA operator maintenance.

On behalf of the operator, we apologize for any inconvenience and appreciate your patience during this service window.

If you have any questions, please contact us at

Kind Regards,
TeleSign Support
Posted 6 months ago. Jan 09, 2019 - 02:43 PST
This scheduled maintenance affected: Operator Alerts.