Area code 867

As the least populated NPA in mainland North America, serving about 130,000 people, it is geographically the largest, at 3,921,739 km2 (1,514,192 sq mi), with Alaska (907) a distant second.

The numbering plan area is adjacent to seven provinces (Alberta, British Columbia, Manitoba, Newfoundland and Labrador, Ontario, Saskatchewan, and Quebec) and one U.S. state (Alaska), as well as Greenland and Russia (across the North Pole), more jurisdictions than any other in North America.

[citation needed] Bell Canada introduced telephone service in the eastern Northwest Territories in 1958.

In 1993, Bell Communications Research, functioning as the North American Numbering Plan Administration listed the vast majority of the territories with area code 403.

The expense limits deployment so far to Whitehorse, Yellowknife, Inuvik, Behchokǫ̀, Aklavik and Hay River, four of which already have multiple prefixes.

in June 2021, the CRTC recommended implementing the three-digit code 9-8-8 for the nationwide suicide prevention hotline.

In August 2022, the CRTC finalized its implementation plans for 9-8-8, effective November 30, 2023; it accepted a request from Northwestel to make ten-digit dialing mandatory only in the Yellowknife area and optional elsewhere within the region as of May 31, 2023, in part because it would ease the process of communicating the transition to remote communities and in Indigenous languages.

[9] On a section of the Alaska Highway which crosses the BC-Yukon border six times in 6 mi (9.7 km), two highway lodges and area residents on the Yukon side are served by Watson Lake (867) numbers, not the nearer Lower Post (250) exchange.

On Ellesmere, conventional telephony is available at Grise Fiord (1-867-980-xxxx), population 130, but not at two remote government outposts further north: Eureka, Nunavut (80.1°N) is host to an Environment Canada weather station[10] and Alert, Nunavut (82°N) is a Canadian Forces Station.

[14] There is a skeleton crew at each location which is reachable by Internet or telephone, but these links are satellite or military communication and do not use the area code 867 infrastructure.