I'm not sure if it's my phone or not, but I have an iPhone, and the other day I lost service and I haven't been able to get it back since. Would anyone have any idea on how to get my service back? It would be a really big help.
First try turning it off and then pulling the SIM Card and putting it back in then turning on the phone again.
If that doesn't do anything then make sure the phone hasn't been put into airplane mode.
Also make sure your phone isn't set to 2g or gsm only under network type of the phones settings menu.