It used to be that everyone had a landline phone in their home and searching for a phone number or address simply required opening the yellow pages and searching for their name. It is often more difficult 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 invention of caller ID on most landlines, many numbers may appear without an identifying name and there are ways for callers to block their details from appearing. Reverse phone lookup directories have responded to these changing demands to provide a very timely service to modern phone users.
There are two common uses for these services.
Searching for Names
If you are getting calls from someone and only a number is revealed on your caller ID, or you need to figure out cell phone callers, reverse phone lookup directories can help you find out the name listed to the number in question. Just by typing in the phone number you will have access to whoever is responsible for those bothersome phone calls.
People looking for such services include those who need to check up on a number frequently texting their spouse or children's cell phone, since there is no public directory for cell phone numbers. Others may use this when they need to find a name registered to a landline that is unlisted. Anytime you have a number but don't know who it belongs to, a reverse phone lookup service can deliver the information.
Finding Addresses
The other typical use is to identify an address for someone, whether you know the name of the person or not. Once you plug into the information connected with a particular number most services will deliver additional data as well, such as the address of the home phone or the address listed to a cell phone number.
This may not be an everyday need for some people, but it does have its benefits in quite a few situations. For example, take a parent in a rush to find a teenager who has run off or is still out long after curfew. If they can find phone numbers from the teenager's belongings or cell phone a lookup directory could quickly reveal addresses and names of locations the teenager may be located.
More common situations may be looking for addresses to send out party invitations to your child's peers. If you have their phone number you can get their address and get the invite in the mail without calling or tracking down other busy parents.
These services can also deliver access to other sorts of data, such as income brackets or previous addresses, and one site even gives a map with an general pinpoint to the business or home's location.
There will be a small charge for any legitimate reverse phone lookup directory, but if your business or personal situation requires certain data it is worth the money in the end. The fee is unavoidable because this sort of information is not easy or completely free to research, pull together, and store, so dispensing it as needed to others such as you must also collect a fee to account for such operational expenditures.
There probably will never be a public directory for cell phone numbers, and even if there were it is probable the majority of the numbers would be unpublished as is the case with many landline numbers right now. The best way to get access to such phone numbers is to pay a minor fee either to complete a one time phone number search or to join a lookup service if you will be using the service long term.