Our zip code is 95695. We have wifi in the house from our cable company. Sometimes the service indicator at the top of the phone shows 4G and one or two bars and sometimes it shows 3G. I do not get a lot of cell phone calls at home but lately the voice reception has seemed Ok. When we first moved into the house two months ago I was missing calls. The phone would show a missed call but had not rung. My wife has an iPhone and says that the service is poor. She was told by a realtor friend that generally cell service was poor in Yolo county. Thanks.