In this tutorial, you will learn how to:
• View data usage
• View data usage by app
• Change billing cycle
• Set data warning or data limit
View data usage
1. Swipe down from the Notification bar with two fingers, then select the 
Settings icon.
Settings icon.2. Select the Network & internet, then select Data usage.
3. Data usage for the current cycle will be displayed.
View data usage by app
From the Data usage screen, select App data usage then scroll to and select the desired app.
Note: To restrict apps from using data while running in the background, select the desired app then select the Background data switch. Your myAT&T account is also another way to manage your wireless usage.
Note: To restrict apps from using data while running in the background, select the desired app then select the Background data switch. Your myAT&T account is also another way to manage your wireless usage.
Change billing cycle
From the App data usage screen, select the Data usage cycle drop-down then select the desired billing cycle.
Set data warning or data limit
1. From the App data usage screen, select the Settings icon.
Settings icon.2. Select the desired option:
• SET BILLING CYCLE: Select App data usage cycle.
• ENABLE/DISABLE DATA WARNING: Select the Set data warning switch.
• SET DATA WARNING: When the Data warning switch is enabled, select Data warning.
• ENABLE/DISABLE DATA LIMIT: Select the Set data limit switch.
• SET DATA LIMIT: When the Data limit switch is enabled, select Data limit.
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.