Access Usage Manager to view data usage, set data limits, & see the apps using the most data.
INSTRUCTIONS & INFO
From the home screen, tap Apps.
Swipe to, then tap Usage Manager.
To turn on data usage limits, tap Set mobile data limit.
Drag the limit and/or warning lines up or down as desired. 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 plan limits.
To change which billing cycle you are viewing usage for, tap the Data usage cycle drop-down menu and then select the desired bill cycle.
To change your billing cycle, tap Change cycle.
Tap the Up and Down arrows to reach the desired date, and then tap Set.
To restrict application usage, scroll down and tap the desired application.
Tap the Menu icon, then tap Restrict background data to enable or disable.