Area code 613 is one of Canada’s original area codes, established in 1947, and serves eastern Ontario, including the nation’s capital, Ottawa, as well as Kingston, Cornwall, and Brockville. It was overlaid by area code 343 in 2010, requiring ten-digit dialing throughout the region. The 613 area is home to a major concentration of federal government institutions, tech companies, and historic landmarks. As one of the most recognized area codes in Canada, 613 carries both political and cultural significance across Ontario and the country.