Phone area codes for Ottawa, ON
3 active area codes · Eastern Time (EST/EDT, UTC-5/-4) · population 1,017,449.
Ottawa is the capital of Canada, situated on the south bank of the Ottawa River in eastern Ontario. It is home to Parliament Hill and the country's federal institutions.
Area codes serving Ottawa
Dialling from and to Ottawa
Because Ottawa sits inside an overlay region with 3 overlapping area codes, callers must always dial 10 digits — even for calls between two phones on the same street. From outside Canada and the United States, dial your international access prefix, then +1, then the 10-digit number.
Mobile carriers in Ottawa typically issue numbers from whichever overlay code is currently being released by the NANP relief plan. As a result, two members of the same household frequently carry numbers from two different area codes — for example a long-time resident with an original-assignment number and a newer subscriber with an overlay number.
Major carriers serving Ottawa
About Ottawa, Ontario
Ottawa is located in Ontario, Canada. Ottawa is the capital of Canada, situated on the south bank of the Ottawa River in eastern Ontario. It is home to Parliament Hill and the country's federal institutions. The city falls within the Eastern Time (EST/EDT, UTC-5/-4) time zone.
Numbers issued to subscribers in Ottawa can come from any of the area codes assigned to the surrounding numbering plan area: 613, 343, 753. With number portability now standard across all Canadian carriers, the area code attached to a Ottawa number tells you only where that number was first issued — not who currently carries it or where the device is physically located.
If you are trying to identify a recent call from 613 or 343 or 753, the caller is most likely either based in Ottawa or another community within the same NPA, has previously held a number issued in this area, or — in the case of telemarketing and scam calls — is spoofing a local prefix to increase the chance you pick up.