View cellular network signal, turn your mobile data connection on or off.
INSTRUCTIONS & INFO
Signal strength will be indicated in the Notifications bar. When you are within range of a cellular tower the indicator will show more bars. If you are not in range of a cellular tower you will have fewer bars/less signal strength. Note: To view the locations AT&T voice and data service can be used, see the AT&T Network coverage map: http://www.att.com/maps/wireless-coverage
If 4G is available, the 4G icon will appear next to the signal strength indicator in the Notifications bar. Note: Learn more about the AT&T network: http://www.att.com/network/en/index.html
If Airplane mode is enabled the Airplane mode icon will be displayed in the Notifications bar.
When connected to a Wi-Fi network, the Wi-Fi active icon will be displayed in the Notifications bar. The numbers of signal bars corresponds to the strength of the Wi-Fi signal.