Reverse phone search allows you to see who's behind the phone number. Or, it allows you to find a person only using their phone number. A valid phone number must always be registered first to a service provider like AT&T, T-Mobile, Verizon, etc. and secondly to a real person. As a result, in most cases you can find a person's name simply from searching their phone number.
So why would you want to search someone's phone number?
We live in a world of rampant online fraud and deceit. A reverse phone search will allow you to see if a phone is really registered to a real person. In lots of cases involving scams, people use VOIP (digital internet) numbers to hide their location. A Reverse Phone Search can help you uncover this.