thedirtyphonebook.com is a site where users can list a number and leave comments about their experience with the person who owns the number or a call from the number.
The most active listing right now is 512-998-0303 and the man who owns the phone is a predator who seeks women with money.
The site was started as a review page for call girls and it exploded in popularity due to the controversial anonymous people review feature. You can even upload a picture.
The site was taken down for a short time as a result of law suit threats. Later the American government passed a law making review sites not liable for libel or defamation posted on the site by a guest user.
The protections has propelled review websites like thedirtyphonebook.com and Rip Off Report into the safe zone giving consumers, jilted lovers, and disgruntled employees a forum to spread the word about their negative experiences.