| General Information about Area Code 403 | |
|---|---|
| Country | Canada |
| State / Province / Territory | Alberta |
| Major City | Calgary |
| Time Zone | Mountain (UTC-07:00) |
| Prefix | Primary City | Phone Type |
|---|---|---|
| 403-647 | Milk River | Landline |
| 403-734 | Gleichen | Landline |
| 403-672 | Olds | Wireless |
| 403-986 | Red Deer | Landline |
| 403-767 | Calgary | Landline |
| 403-239 | Calgary | Landline |
| 403-579 | Byemoor | Landline |
| 403-857 | Hanna | Landline |
| 403-276 | Calgary | Landline |
| 403-924 | Three Hills | Landline |
| 403-829 | Calgary | Wireless |
| 403-645 | Calgary | Landline |
| 403-241 | Calgary | Landline |
| 403-860 | Calgary | Wireless |
| 403-769 | Calgary | Landline |
| 403-335 | Didsbury | Landline |
| 403-876 | Big Valley | Landline |
| 403-233 | Calgary | Landline |
| 403-225 | Calgary | Landline |
| 403-941 | Crossfield | Landline |