For tiered data plans, UScellular will automatically send you text alerts prior to the close of the bill cycle when you approach 75% and 100% of your data limit. If you are on a tiered data plan, for every data tier that you go over, you will receive a message warning when you approach 75% and 100% of that data tier.
For Total Plans customers, since there are no overage fees, no alerts will be sent.
Note: Customers who are using devices that do not support text messaging will receive the notifications via an outbound call to the customer's alternate contact phone number.