The best 800 number directory is the Internet 800 Directory. It is used by millions of people each year to search for and locate toll free numbers for products and services. It was founded in 1995 by DIANCO, who also created the first Web-based Yellow Pages.
The directory teams up with several other online directories and businesses such as Yahoo, Qwest and White Pages. Numbers are searched by entering a company name or product, and a drop-down option allows choice of state and number of results desired. Toll free telephones have been used in the United States for almost 50 years.