Reverse Phone Lookup
 

How do I find out who own a particular number. Is there a free way of finding out? If not is there a service that can find out instantly online?

I think that very much depends on the country the user is calling from. #ugandaftw

for the US try http://www.411.com/reverse_phone

for Canada try http://www.canada411.ca/search/reverse.html

best method is here:

http://tinyurl.com/kuv43p