Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jul 23, 2025 - 23:00 PDT
Scheduled
Issue: United States (US) - United States Cellular Corp (311/220;580) Maintenance
Date: 07/23/25 Start Time: 11 PM PDT End Time: 03:30 AM PDT, 07/24/25
Summary: We have received notification that US Operator United States Cellular Corp (311/220;580) will perform 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 (311/220;580) users may experience a temporary delay in message delivery, so we kindly ask that you plan accordingly. This United States Cellular Corp (311/220;580) operator maintenance will not affect other US operators.
On behalf of the operator, we'd like to apologize for any inconvenience and appreciate your patience during this service window.