You can find the public directory of names, phone numbers, and information on the internet, and you can easily perform a reverse lookup using a person or company’s ten digit telephone number in order to access the name and other information. You will only be granted basic information about the company, when using a public directory, although detectives and cops have access to a more private directory that may provide more information than a basic reverse look up search. In general, though, you should not have any problems using a person or company’s ten digit phone number to access the basic information.