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 - US Cellular - 11/18/2020
Scheduled Maintenance Report for TeleSign System Status
The scheduled maintenance has been completed.
Posted Nov 19, 2020 - 02:30 PST
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Nov 18, 2020 - 21:30 PST
Issue: US Operator - US Cellular Maintenance

Date: 11/18/2020
Start Time: 09:30PM PST
End Time: 11/19/2020 - 02:30AM PST

We have received notification that US Operator US Cellular 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 US Cellular 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 US Cellular 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 Nov 17, 2020 - 03:55 PST
This scheduled maintenance affected: Operator Alerts.