Zipcode 37821...Verizon signal used to be the best. Now I am lucky if I can connect a call out or in. Inside or outside it does not matter. I get more dropped calls (6 in a row although the phone said I had 1 or 2 bars and I was even signed on for Wifi calling). I can go halfway through my front yard and coverage is a little better. This is dangerous if you cannot call 911 in an emergency!!!