| District of Alberta area codes: 403 | |
|---|---|
| Country | Canada |
| State/Province | Alberta |
| Major City | Sibbald |
| Time Zone | Mountain |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 403-362 | Brooks, AB | Telus | |
| 403-363 | Brooks, AB | Telus | |
| 403-364 | Delia, AB | Telus | |
| 403-365 | Calgary, AB | Telus | |
| 403-366 | Calgary, AB | Bell West Inc. | |
| 403-367 | Calgary, AB | Telus | |
| 403-368 | Rumsey, AB | Telus | |
| 403-369 | Calgary, AB | Telus Mobility | |
| 403-370 | Calgary, AB | Telus Mobility | |
| 403-371 | Calgary, AB | Telus Mobility | |
| 403-372 | Crowsnest Pass, AB | Telus | |
| 403-373 | Red Deer, AB | Telus Mobility | |
| 403-374 | Calgary, AB | Telus | |
| 403-375 | Calgary, AB | Telus | |
| 403-376 | Brooks, AB | Telus Mobility | |
| 403-377 | Tilley, AB | Telus | |
| 403-378 | Duchess, AB | Telus | |
| 403-379 | Bindloss, AB | Telus | |
| 403-380 | Lethbridge, AB | Telus | |
| 403-381 | Lethbridge, AB | Telus |
There are 781 prefixes, In the code area, the major cities are Milo, AB;Sibbald, AB;Eckville, AB;High River, AB;N. The major city is Milo.