For the wine region, see Napa Valley AVA. Napa County is a county located north of San Pablo Bay in the northern portion of the U.S. state of California. As of the 2010 census, the population was 136,484. The county seat is the City of Napa. Napa County was one of the original counties of California, created in 1850 at the time of statehood.
Area code 412 is a Pennsylvania area code that covers Pittsburgh and some of the surrounding areas. Area code 412 overlays the area code of 878. Pennsylvania has area codes of 215, 267, 272, 412, 484, 570, 610, 717, 724, 814, 878.
Try searching for any 660 Area Code phone number today, and discover what Spokeo can do for you. Top Cities. Butler, Maryville, Marshall, Smithton, Sweet Springs, Otterville, Appleton City, Blairstown, Green Ridge, Urich, La Belle, Chillicothe, Kirksville, Clinton, Chilhowee, Malta Bend, Sedalia and New Cambria.he 660 area code lies within the Central Standard Time (or CST). The current time in Central Standard Time is 07:57 AM on 10/18/2015. Population Demographics. The 660 Area Code is one of the telephone area codes supported by Spokeo's Reverse Phone Lookup technology.