A brand new space code was lately introduced for the Western Quebec communities of Drummondville, Gatineau, Sherbrooke, Trois-Rivieres and extra. The brand new space code 873 will turn out to be lively on September 15, 2012 and can cowl the identical geographic space at the moment served by area code 819. With the introduction of the brand new 873/819 overlay complicated this space will use 10 digit dialing for native calls. I could not discover any particulars within the official announcement relating to a permissive 7/10 digit dialing interval (a 3 month or extra permissive interval is mostly used earlier than an overlay space code is launched; this fashion folks can get used to dialing 10 digits as an alternative of seven).
See the official NANPA announcement and map of the new area code (PDF doc).
Go to area code 873 web page for a listing of cities served, map and different data.