The Jap a part of Quebec, Canada is at the moment served by space code overlay advanced 418/581, together with cities and cities similar to Alma, Levis, Quebec Metropolis, Riviere-du-Loup, St. Georges. A brand new space code will overlay the 2 codes starting November 24, 2018. 10 digit dialing is already used on this space so there shall be no want for a transition interval from 7 to 10 digit dialing.
See official CNA/NANPA announcement for more information and a map of the new overlay area 418/581/367 (PDF doc).
Go to area code 367 web page for a listing of cities served, map and different data.