Where can you look up Canadian phone numbers for free?

Canada411.ca gives users the ability to look up both personal and business Canadian phone numbers. Canada411.ca is the Canadian branch for the Yellow Pages.

Canada411.ca receives its residential telephone listings from public local telephone records distributed by sponsoring telephone providers in the area. The listings are combed through and updated on a monthly basis. Users are given the option to request a listing of their own number to be removed, should privacy be a concern. Canada411.ca also gives users the ability to reverse look-up telephone numbers too, if they do not have a name to search.