Not long ago, everyone had a standard phone in their home and locating a number or address simply required opening the phone book and finding the name. This has become more complicated now that cell phones are widely used and many people do not even have home phones, and if they do their number may be unlisted.

Even with the widespread use of caller ID on most landlines, many numbers may appear without an identifying name and there are ways for callers to prevent their details from showing up. Reverse phone lookup directories have responded to these changing times to offer a very valuable service to resourceful phone users.

There are two typical functions for lookup directories.

Finding Names

If you are getting calls from someone and only a number is revealed on your caller ID, or you need to identify cell phone callers, reverse phone lookup directories can help you find out the name registered to the number in question. Just by entering the phone number you will be able to identify whoever is initiating the calls of concern.

People looking for such services include those wanting to identify a number frequently calling their spouse or children's cell phone, since there is no accessible directory for cell phone numbers. Other people may use lookup directories when they want to find a name listed to a landline that is unlisted. If you have a number but aren't sure who it belongs to, a reverse phone lookup directory can assist you.

Locating Addresses

The other common purpose is to find 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 directories will deliver other sorts of data as well, which includes the address of an landline or the address connected to a cell phone number.

This may not be a common need for some people, but it does have its benefits in some situations. Such as a parent needing to track down a teenager who has run off or is still out well past curfew. If they can come up with numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly tell them addresses as well as names of places the child may be located.

More common situations 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 easily deliver the invite without calling or tracking down other busy people.

Lookup directories can also give you access to other various types of information, like income brackets and address histories, and one site even gives a map with an rough pinpoint of where the home or business is located.

There will be a minor fee for any legitimate reverse phone lookup directory, but if your business or personal situation demands accurate information it is more than worth the payoff in the end. The fee is required because this variety of information is not simple or completely free to research, pull together, and save, so distributing it as needed to consumers such as you must also come with a charge to account for these working costs.

There probably will never be a phone book for cell phone numbers, and even if there were most likely many of the numbers would be unlisted as is the case with many landline numbers today. The best way to obtain access to these phone numbers is to give a nominal fee either to do a one time phone number search or to join a lookup service if you will need to access the service long term.