Area Code 613: Ottawa, Eastern Ontario, and Canada's Capital Region
Area code 613 covers Ottawa and eastern Ontario, serving Canada's capital city and the surrounding region. Here's the history and geography of this important Canadian code.
Ottawa and the 613
Area code 613 covers Ottawa, Canada's capital city, along with eastern Ontario — a large territory stretching from Kingston and the Thousand Islands in the southwest to the Quebec border in the east and north.
The code was assigned to this region when Canada joined the North American Numbering Plan, and it has served as the number associated with Canadian federal government institutions in much the same way that 202 is associated with Washington D.C.
Canada's Federal Capital
Like Washington D.C., Ottawa is a government-dominated city. Parliament Hill, the Supreme Court of Canada, the Governor General's residence, and dozens of federal departments and agencies all call 613 home. For Canadians, a call from a 613 number often carries an air of officialdom.
Ottawa is also home to a significant technology sector, sometimes called "Silicon Valley North," with major employers including Shopify, Nokia, and numerous government technology contractors. This tech presence has increased demand for telephone numbers in the region.
The 613 Territory
Beyond Ottawa itself, 613 serves a substantial swath of eastern Ontario including Kingston (home of Queen's University and a major military base), Brockville, Cornwall, Pembroke, and dozens of smaller communities along the St. Lawrence River and the Ottawa Valley.
613 and 343: Overlay Relief
As Ottawa grew, area code 343 was introduced as an overlay for the 613 territory. The two codes now serve the same geographic area — Ottawa and eastern Ontario — with 10-digit dialing required for local calls throughout the region.
Ontario's Area Code Landscape
Ontario is Canada's most populous province and has multiple area codes. Toronto uses 416 (core) with overlays 647 and 437. The greater Toronto area uses 905 with overlay 289. Northern and southwestern Ontario use 807 and 519 respectively. 613 is uniquely positioned as the code of Canada's capital — a role that gives it a significance beyond its geographic coverage.
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