Lesson plan
Area code 403
Area code 403 is a telephone area code in the North American Numbering Plan (NANP) for the southern third of the Canadian province of Alberta, including the Calgary area. This numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay for all of Alberta.
Article summary
Area code 403 is a telephone area code in the North American Numbering Plan (NANP) for the southern third of the Canadian province of Alberta, including the Calgary area. This numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay for all of Alberta.
Key claims
No claims recorded.
Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.