<P> Area codes 208 and 986 are the North American telephone area codes for all of Idaho . 208 is the main area code, and is one of the 86 original area codes created in 1947 . It was Idaho's sole area code until 2017, when 986 was added as an overlay for the entire state . </P> <P> Because of its small population, Idaho was among a declining number of North American jurisdictions with only one area code . It is also one of the few whole - state area codes split between multiple LATAs--Southern Idaho (centered in Boise and spilling into Nevada, Wyoming and Malheur County, Oregon) and Coeur d'Alene (spilling into Montana and Washington). Additionally, the Spokane, Washington LATA spills into central Idaho . </P>

Where is area code 208 located in the united states