Several free phone books for London, Ontario, exist online, including those found on 411.ca, WhitePages.com, Local.ca and Canada411.ca. Find business listings for London, Ontario, through the Yellow Pages at YP.ca.
On 411.ca, users can find the last names of those listed alphabetically by last name. WhitePages.com and Local.ca allow users to search for phone numbers by entering the last name in a search field. On Local.ca, users can perform a reverse phone number lookup by entering any number into a field. YP.ca gives users a listing of business categories listed alphabetically. Users can click on any general category to view a list of more specific businesses and services. After clicking on a specific category, users receive a list of businesses and their phone numbers in London, Ontario.