Paper directories should cycle through by next year as if you don't pay for a land line you don't get a listing.
Here is the info on the update time frames from the Canada411.com site provided by the major Canadian telephone CompaniesHow recent is Canada411.caTM data and how often is it updated?
The Canada411.caTM data is obtained from several sources.
Residential listing information acquired from participating providers is between 30-65 days old, and the information is updated monthly on Canada411.caTM.
Data may be more recent for some regions than others.
There are all sorts of online directories that get there information from all over the place.
Internet searches are next to impossible to delete information as there are more search providers than Google. Yahoo and Bing come to mind.
It also depends on what search terms are used as the business that was at your new house may be embedded in a web page from another company and none of the search engine providers can edit that.