- From the home screen, tap the AT&T folder.
- Tap Usage Manager.
- To set a data limit, tap Limit mobile data usage.
- Tap OK.
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. - Drag the handles to set the alert and limit levels.
- Scroll to, then tap the desired app to view data usage details.