I moved from ATT Cell to Verizon after the new tower went up. I moved my ATT landline number to my cell (at no cost) since no one had my old cell number. You can also move your old ATT landline to Comcast voip service at virtually no cost when bundled with wifi.
mtndad makes a good point about checking cell service. Verizon put in a tower about 1000 feet from me on Hoopa Circle. I believe the tower is on Bigfoot Circle near the water tanks. Google earth shows it.
Scott