1. To view data usage via the Usage Manager, swipe to the home screen and tap the AT&T folder.
   Note: To check your current month's data usage, dial *data# (*3282#) on your mobile phone to receive a text message with the current bill cycle's usage.
   
2. Tap Usage Manager.
   
3. Tap DATA USAGE.
   
4. Scroll to view the data usage summary for the selected billing cycle.
   
5. To change the displayed billing cycle, tap the Data usage cycle drop-down.
   
6. To change the billing cycle reset date, Data usage cycle drop-down. Select Change cycle...
   
7. Select the Desired date and tap SET.
   
8. To set a monthly data limit, Drag the Data limit marker up or down.
   
9. Drag the Warning marker up or down to set the level at which you will be warned about your monthly data usage.
   
10. The data warning and limit will save automatically.
    Note: When the mobile data limit is active and has been reached, the mobile data block will remain in effect until mobile data is manually re-enabled on the device, the limit threshold is changed to a higher value, or a new data usage cycle begins. If you set data usage limits on your device, they do not communicate with AT&T systems. You will still receive AT&T system generated notifications as you approach your data limits.
    
11. Scroll to view Data usage broken down by app.
    Note: To restrict apps from using data while running in the background, tap the Menu icon > Restrict background data. Your myAT&T account is also another way to manage your wireless usage.