System Status

This page offers API uptime information for TeleSign services, in addition to incident history reports and service issues alerts.
Issue: US Operator - United States Cellular Corp USA
Scheduled Maintenance Report for TeleSign System Status
The scheduled maintenance has been completed.
Posted Dec 06, 2018 - 02:00 PST
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Dec 05, 2018 - 23:00 PST
Start Date: 12/05/2018
Start Time: 11:00 PM PST

End Date: 12/06/2018
End Time: 02:00 AM 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, SMS and MMS messaging delays may be experienced.

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 Dec 05, 2018 - 06:56 PST
This scheduled maintenance affected: Operator Alerts.