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.
613 Area Code Information. Area code 613 (and overlay area code 343) are area codes for Ottawa and surrounding Eastern Ontario, Canada. 613 is one of the 86 original area codes of North America assigned in October 1947.Before area code 450 was created, it bounded 514, and before the introduction of area code 905 in 1993, it bounded 416.In addition to its current boundary, 613 also originally covered all of Northern Ontario and much of Southwestern Ontario.lso served by area code 613 and Bell Canada is Saint Regis, Quebec, a reservation bordering Fort Covington, New York, and Rapides-des-Joachims, Quebec, which shares the same exchange as the neighboring community of Rolphton.