Finding out the identity of an unknown caller by their telephone number is easy with the Internet, especially with the numerous community efforts that have sprung up to database the numbers of cold-callers. One such website is called Phone Owner.
Phone Owner is free to use and relies on the contributions of its users. Its aim is to create a comprehensive database of nonpublished business numbers that people may come across through cold calls, text messages and so forth.
Another way to find out who is calling is with WhitePages Current, an application that has compiled a database of almost 300 million businesses and individuals. Once the app is installed on a smartphone, the identity of unknown callers will be listed as they are calling.