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 - [Date]
Scheduled Maintenance Report for TeleSign System Status
The scheduled maintenance has been completed.
Posted 2 months ago. Jun 20, 2019 - 02:00 PDT
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted 2 months ago. Jun 19, 2019 - 23:00 PDT
Issue: US Operator -United States Cellular Corp Maintenance

Start Date: 06.19.2019
Start Time: 11:00 PM
End Date: 06.20.2019
End Time: 02:00 AM

We have received notification that US Operator United States Cellular Corp 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 United States Cellular Corp 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 United States Cellular Corp 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 2 months ago. Jun 13, 2019 - 13:07 PDT
This scheduled maintenance affected: Operator Alerts.