Area Code 403 History - Alberta

Significant events for area code 403


Year
Details
1947 The original area code for Alberta, the Yukon and the western area of the Northwest Territories.
1997 Area codes 403 and 819 were split to create a new area code to cover the Northwest Territories, the Yukon and (now) Nunavet.
1999 Area code 403 was split with 780 covering the northern and central areas of Alberta.
2008 Area code 587 was overlaid on 403 and 780 .
2016 Area code 825 was overlaid on 403, 780 and 587 .