Question 1

Where is area code 403?

Accepted Answer

Area code 403 covers Calgary and nearby cities including Red Deer, Lethbridge, Medicine Hat in Alberta, in the Mountain Time.

Question 2

What cities use area code 403?

Accepted Answer

Area code 403 serves Calgary, Red Deer, Lethbridge, Medicine Hat, Strathmore, and 7 other communities in Alberta.

Question 3

What time zone is area code 403 in?

Accepted Answer

Area code 403 is in the Mountain Time (America/Edmonton).

Question 4

How do you dial a 403 number?

Accepted Answer

Dial all 10 digits: 403 followed by the 7-digit local number. From abroad, dial +1 403 and the local number.

Question 5

Is a call from area code 403 a scam?

Accepted Answer

A 403 number is geographically tied to Alberta, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.

Question 6

Is 403 a country code?

Accepted Answer

No. 403 is a Canadian area code (a domestic 3-digit code), not a country code. The country (calling) code for Canada is +1, shared across the North American Numbering Plan. So a full 403 number written for international dialing looks like +1 403 followed by the 7-digit local number.

Area Code 403

Cities in area code 403

Area codes by city

Other Alberta area codes

Nearby area codes