Area Code Atlas

Mandatory ten-digit dialing introduced for 873

On October 21, 2006, mandatory ten-digit dialing was implemented for area code 873 in Quebec, in preparation for its future activation as an overlay for 819.

NPA 873 to Overlay NPA Code 819 (Western Québec, Canada)

CRTC advances introduction of area code 873

The CRTC announced on July 20, 2011, that the introduction of area code 873 would be brought forward to September 15, 2012, due to the impending exhaustion of area code 819 in central and western Quebec.

NPA Code 873 to Overlay NPA Code 819 (Western Quebec, Canada)

Area code 873 overlay introduced for 819

Area code 873 was introduced as an overlay to area code 819 on September 15, 2012, to provide additional numbering resources due to exhaustion of area code 819.

Area code 873 becomes active as overlay

Area code 873 was activated on October 20, 2022, as an overlay to the existing 819 region in Quebec, addressing number exhaustion.

Area code 468 reserved for future overlay in Quebec

In February 2017, area code 468 was reserved as a future overlay for the 819/873 region of Quebec, in anticipation of continued number growth and projected exhaustion, addressing future numbering needs for the region served by 819 and 873.

NPA 468 overlay on 819/873 announced

NPA 468 to Overlay NPA 819/873 (western Quebec)

Area code 468 overlay activated for 819/873

Area code 468 was activated on October 20, 2022, as a third overlay for the numbering plan area served by area codes 819 and 873 to provide additional numbering resources.

NPA 468 overlays 819 and 873 in Quebec

Area code 468 was activated on October 22, 2022, as an overlay for area codes 819 and 873 in central and western Quebec. This overlay was implemented to provide additional numbering resources for the region.