Area code 403
Where is area code 403?
Calgary, Lethbridge and Medicine Hat, Alberta
Local time: … (Mountain Time)
New area code 568 is planned for the same area from June 10, 2028. See all new area codes.
| Province | Alberta |
|---|---|
| Country | Canada |
| Main cities | Calgary, Lethbridge and Medicine Hat |
| Time zone | Mountain Time |
| Overlay area codes | 368, 587, 780 and 825 |
| In service since | 1947 |
| Dialing format | (403) XXX-XXXX · +1 403 XXX XXXX from abroad |
Look up a 403 number
Cities and towns in area code 403
Places we have prefix data for in 403. The list may be incomplete.
- Calgary, AB (53)
- Lethbridge, AB (11)
- Medicine Hat, AB (8)
- Red Deer, AB (7)
- Airdrie, AB (4)
- Brooks, AB (3)
- Banff, AB (2)
- Canmore, AB (2)
- Cochrane, AB (2)
- High River, AB (2)
- Okotoks, AB (2)
- Rocky Mountain House, AB (2)
- Strathmore, AB (2)
- Blackfalds, AB (1)
- Blairmore, AB (1)
- Bow Island, AB (1)
- Bragg Creek, AB (1)
- Cardston, AB (1)
- Carstairs, AB (1)
- Claresholm, AB (1)
- Coaldale, AB (1)
- Coronation, AB (1)
- Crossfield, AB (1)
- Didsbury, AB (1)
- Drumheller, AB (1)
- Eckville, AB (1)
- Fort MacLeod, AB (1)
- Hanna, AB (1)
- Innisfail, AB (1)
- Lacombe, AB (1)
- Langdon, AB (1)
- Linden, AB (1)
- Nanton, AB (1)
- Olds, AB (1)
- Oyen, AB (1)
- Penhold, AB (1)
- Picture Butte, AB (1)
- Pincher Creek, AB (1)
- Ponoka, AB (1)
- Raymond, AB (1)
- Redcliff, AB (1)
- Rimbey, AB (1)
- Stettler, AB (1)
- Sundre, AB (1)
- Sylvan Lake, AB (1)
- Taber, AB (1)
- Three Hills, AB (1)
- Vulcan, AB (1)
Area codes that overlay 403
Questions
- Where is area code 403?
- Area code 403 is in Alberta. It serves Calgary, Lethbridge, Medicine Hat, Red Deer and Airdrie and 43 other cities and towns.
- What time zone is area code 403 in?
- Area code 403 uses Mountain Time.
- What area codes overlay 403?
- 368, 587, 780 and 825 serve the same area as 403. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
- Is a call from area code 403 a scam?
- The area code alone doesn’t tell you. Most calls from 403 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 403 number, let it go to voicemail.
- When did area code 403 start?
- 403 went into service in 1947. A new code, 568, is planned for the same area from June 10, 2028.
- Can a 403 number be outside Alberta?
- Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 403 caller can be anywhere.