Why am I not receiving text messages unless I am in a Wifi area?

Hello applegirl888888,

You may have Airplane Mode enabled on your iPhone, which would allow your iPhone to connect to WiFi networks, but not to Cellular data networks.

iOS: Understanding airplane mode

http://support.apple.com/kb/HT1355

Cheers,

Allen

applegirl888888,

Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action.

All my best,

Allen