North American area codes 418/581 are overlaid telephone area codes serving the Canadian province of Quebec, encompassing the eastern portion of the province. Communities served by the 418/581 area code include Quebec City, Saguenay–Lac-Saint-Jean, Rivière-du-Loup, Rimouski and the Gaspé Peninsula, Côte-Nord and southeastern Mauricie regions. 418 also serves the tiny hamlet of Estcourt Station, in the U.S. state of Maine. The main area code, 418, was one of the original area codes created in 1947. Then, as now, its boundaries were depicted as generally the eastern half of Quebec.