Phone area codes for Calgary, AB

Calgary is the largest city in Alberta and the headquarters of much of Canada's energy industry. It sits in the foothills of the Rocky Mountains and hosts the world-renowned Calgary Stampede.

Dialling from and to Calgary

Because Calgary sits inside an overlay region with 4 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 Calgary 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.

About Calgary, Alberta

Calgary is located in Alberta, Canada. Calgary is the largest city in Alberta and the headquarters of much of Canada's energy industry. It sits in the foothills of the Rocky Mountains and hosts the world-renowned Calgary Stampede. The city falls within the Mountain Time (MST/MDT, UTC-7/-6) time zone.

Numbers issued to subscribers in Calgary can come from any of the area codes assigned to the surrounding numbering plan area: 403, 587, 825, 368. With number portability now standard across all Canadian carriers, the area code attached to a Calgary 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 403 or 587 or 825 or 368, the caller is most likely either based in Calgary 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.