Not long ago, everyone had a landline phone in their home and searching for a phone number or address was a matter of opening the white pages and locating their name. This has become more difficult now that cell phones are widely used and many people do not even have home phones, and if they do their number may be unpublished.

Even with the development of caller ID on most home phones, some numbers may come up without an identifying name and there are ways for callers to prevent their details from showing 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 common uses for these directories.

Searching for Names

If you are receiving calls from someone and only a number is revealed 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 number of concern. Just by typing in the number you will be able to identify the person who is behind the calls of concern.

People needing this service include those wanting to check up on a number frequently phoning their spouse or children's cell phone, since there is no phone book for cell phone numbers. Others may use this when they need to identify a name registered to a landline that may be unlisted. If you have a number but don't know who it is connected to, a reverse phone lookup website can deliver the information.

Finding Addresses

The other typical function is to identify an address for someone, whether you know their name or not. Once you find the information linked with a specific number most services will give other sorts of data as well, which includes the address of an landline or the address associated with a cell phone number.

This may not be a typical need for some people, but it does have its uses in some situations. For example, take a parent in a rush to locate a teenager who has run away or has not returned home long after curfew. If they can get access to numbers from the teenager's belongings or cell phone a reverse phone lookup could quickly uncover addresses as well as names of places the teenager may be located.

More common circumstances may be looking for addresses to send out party invitations to your child's friends. If you have their phone number you can access their address and mail out the invitation without calling or tracking down other busy people.

These services can also deliver a connection to other kinds 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 relevant reverse phone lookup directory, but if your business or personal life demands particular information it is worth the money in the long run. The fee is required because this kind of information is not easy or free to research, compile, and save, so issuing it immediately to consumers like you must also include a fee to make up for these serviceable costs.

There more than likely will never be a phone book for cellular numbers, and even if they were compiled most likely many of the numbers would be unlisted as is the case with many home phone numbers right now. The best way to obtain access to such numbers is to pay a minor fee either to do a one time phone number lookup or to join a lookup service if you will need to access the service on a regular basis.