43°12′N 73°54′W / 43.2°N 73.9°W
Area codes 518 and 838 are telephone area codes in the North American Numbering Plan for eastern Upstate New York in the United States. 518 is one of the 86 original North American area codes created in 1947. Area code 838 was added to the 518 numbering plan area in 2017. The two area codes serve 24 counties and 1,200 ZIP Code areas in a numbering plan area (NPA) that extends from the eastern Mohawk Valley to the Vermont border, and from the Canada–US border to south of Albany. The bulk of the population is in the Capital District, the vicinity of the cities Albany, Schenectady, and Troy. Other cities in the NPA are Glens Falls, Plattsburgh, and Saratoga Springs. It includes the Upper Hudson Valley counties, Greene and Columbia counties, and some northern parts of Dutchess County.