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.
From Wikipedia, the free encyclopedia. Area code 614 is the area code in the North American Numbering Plan for Columbus, Ohio and most of its close suburbs. Ohio was originally assigned four area codes when the area code system was instituted in 1947, one for each quadrant of the state.614 originally covered the southeastern quadrant, from Columbus to the Ohio River along the West Virginia border.In 1998, nearly all of the southern portion of the old 614 territory was split into the new area code 740.n 2001, it was planned to overlay area code 614 with 380, in anticipation of exhaustion. However, the anticipated growth did not materialize and number pooling replaced the proposal.