Area code 867 is the area code in the North American Numbering Plan (NANP) for the three Canadian territories, all of which are in Northern Canada. The area code was created on October 21, 1997, by combining numbering plan areas (NPAs) 403 and 819. As the least populated NPA in mainland North America, serving about 100,000 people, it is geographically the largest, at 3,921,739 km2 (1,514,192 sq mi), with Alaska a distant second.