- From the home screen, tap AT&T.
- Tap Usage Manager.
- To view overall data usage, tap Data.
- Data usage will be displayed on the graph. To set a data limit, tap the Set mobile data limit checkbox.
- Tap OK.
- To change the billing cycle, tap the Data usage cycle field.
- Tap Change cycle.
- Tap the Arrow icons to adjust to the desired date.
- Tap Set.
- To view specific app usage, tap Apps.
- Specific app usage will be displayed.