About Area Code 825
- Region Code
- 825
- City
- Calgary
- State
- Alberta
- Population
- 4,800,000
- Largest City
- Calgary
- Neighboring Codes
- 406 (Billings, Montana)
- Time Zone
- Mountain Time
Area Code 825 — Calgary, Alberta
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Numbering in Alberta has shifted repeatedly as Calgary and the province grew. The original 403 served all of Alberta until 1999, when 780 split to cover the north, including Edmonton. A provincewide overlay, 587, arrived in 2008, ushering in mandatory ten-digit dialing. To meet continuing demand, 825 was activated in 2016 across Alberta; it was later joined by 368 in 2019. The overlays reflect sustained population gains, mobile adoption, and business expansion tied to head-office activity in Calgary.
Calgary’s identity blends prairie pragmatism with a global outlook. The city sits on Treaty 7 territory and draws newcomers from across Canada and abroad, shaping neighborhoods, cuisine, and festivals. Its economy has diversified beyond hydrocarbons, yet energy headquarters and engineering firms still set the pace. Proximity to the Rockies anchors recreation and tourism, while post-secondary institutions feed a skilled workforce.