It used to be that everyone had a landline phone in their home and searching for a phone number or address was a matter of opening the phone book and locating the name. Things have grown more complicated now that cell phones are in common use and many people do not even have home phones, 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 prevent their name from coming up. Reverse phone lookup services have stepped up to these changing demands to offer a very useful service to resourceful phone users.

There are two typical functions for these directories.

Searching for Names

If you are getting calls from someone and only a number shows on your caller ID, or you need to identify cellular phone callers, reverse phone lookup directories can help you find out the name registered to the phone number in question. Just by entering the number you will have access to whoever is initiating those bothersome phone calls.

People needing such services include those who need to identify a number often calling their spouse or teenager's cell phone, since there is no phone book for cell phone numbers. Others may use lookup directories when they want to find a name registered to a landline that may be unpublished. Anytime you have a number but are uncertain who it belongs to, a reverse phone lookup directory can assist you.

Finding Addresses

another common use is to locate an address for someone, whether you know the name of the person or not. Once you plug into the contact information connected with a specific number most directories will give additional information as well, which may include the address of an home phone or an address listed to a cell phone number.

This may not be a common need for most people, but it does have its uses in some situations. Such as a parent in a rush to track down a teenager who has run off or has not returned home long after curfew. If they can find phone numbers from the teenager's belongings or cell phone a lookup directory could quickly tell them addresses and names of locations the teenager may be located.

Other situations may be searching for addresses to send out party invitations to your child's peers. If you have their phone number you can access their address and get the invite in the mail without calling or tracking down other busy family.

These services can also give you access to other sorts of data, such as income brackets or address histories, and one site even gives a map with an rough pinpoint of where the home or business is located.

There is a minor fee for any legitimate reverse phone lookup service, but if your business or personal situation requires particular data it is worth the money in the long run. The fee is unavoidable because this variety of information is not simple or free to research, collect, and protect, so dispensing it as needed to consumers such as you must also collect a charge to cover such working costs.

There more than likely will never be a public directory for cell phone numbers, and even if there were most likely a lot of the numbers would be unpublished just like many landline numbers today. The best way to get access to these numbers is to pay a minor charge either to complete a one time number lookup or to join a lookup directory if you will need to access the service long term.