View cellular network signal, turn your mobile data connection on or off.
INSTRUCTIONS & INFO
The signal strength and carrier are displayed in the status bar. Note: To view the locations AT&T voice and data service can be used, see the AT&T Network coverage map.
When 3G is available, the 3G icon will appear in the status bar. Note: To learn more about the AT&T network, visit http://www.att.com/network.
When Airplane mode is enabled, an icon will appear in the status bar.