It used to be that everyone had a landline phone in their home and locating a number or address simply required opening the yellow pages and locating the name. It is often more complicated now that cell phones are widely used and many people do not even have landlines, and if they do their number may be unlisted.
Even with the development of caller ID on most landlines, some numbers may appear without an identifying name and there are ways for callers to prevent their name from showing up. Reverse phone lookup services have responded to these changing demands to offer a very useful service to modern phone users.
There are two common functions for these services.
Searching for Names
If you are getting calls from someone and only a number comes up on your caller ID, or you need to identify cellular phone callers, reverse phone lookup services can assist in finding the name registered to the phone number in question. Just by entering the phone number you will have access to the person who is initiating the phone calls in question.
People needing such services include those who need to check up on a number constantly calling their spouse or children's cell phone, since there is no phone book for cell phone numbers. Others may use this when they want to identify a name listed to a landline that is unpublished. Anytime you have a number but are uncertain who it belongs to, a reverse phone lookup website can deliver the information.
Searching for Addresses
The other common function is to locate an address for someone, whether you know the name of the person or not. Once you plug into the contact information linked with a certain phone number most directories will give additional data as well, which may include the address of an home phone or the address listed to a cell phone number.
This may not be a common need for some people, but it does have its benefits in quite a few situations. For instance, consider a parent needing to locate a teenager who has run away or has not returned home well past curfew. If they can get access to numbers from the teenager's bedroom or cell phone a lookup directory could quickly reveal addresses and names of locations the teenager may be at that time.
Other circumstances may be looking for addresses to mail out party invitations to your child's friends. If you have their phone number you can access their address and easily deliver the invite without calling or tracking down other busy family.
These services can also deliver access to other various types of information, such as income brackets and address histories, and one site even gives a map with an estimated pinpoint of where the home or business is located.
There will be a minor fee for any relevant reverse phone lookup website, but if your business or personal life requires certain data it is money well spent in the end. The fee is necessary because this kind of information is not easy or free to research, compile, and protect, so distributing it immediately to others such as you must also come with a charge to cover these working costs.
There probably will never be a public directory for cell phone numbers, and even if they were compiled most likely many of the numbers would be unlisted just like many landline numbers right now. The only way to gain access to these numbers is to give a minor fee either to complete a one time phone number lookup or to join a lookup service if you will be using the directory long term.