It used to be that everyone had a standard phone in their home and locating a number or address simply required opening the yellow pages and locating their name. Things have grown more difficult now that cell phones are in common use and many people do not even have home phones, and if they do their number may be unpublished.

Even with the widespread use of caller ID on most landlines, some numbers may come up without an identifying name and there are ways for callers to block their name from coming up. Reverse phone lookup services have responded to these changing times to offer a very useful service to modern phone users.

There are two typical functions for lookup directories.

Locating Names

If you are getting calls from someone and only a number shows on your caller ID, or you want to identify cell phone callers, reverse phone lookup services 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 responsible for those phone calls in question.

People in search of this service include those wanting to identify a number often calling their spouse or teenager's cell phone, since there is no phone book for cell phone numbers. Other people may use this when they need to find a name registered to a landline that may be unlisted. If you have a phone number but aren't sure who it belongs to, a reverse phone lookup directory can deliver the information.

Locating Addresses

another common purpose is to identify an address for someone, whether you know the name of the person or not. Once you gain access to the contact information connected with a specific number most services will give other sorts of data as well, which includes the address of the 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 benefits in quite a few situations. For example, take a parent needing to track down 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 belongings or cell phone a reverse phone lookup could quickly reveal addresses as well as names of places the child may be at that time.

More common situations may be looking for addresses to mail out party invitations to your child's friends. If you have their phone number you can get their address and easily deliver the invite without calling or tracking down other busy family.

Lookup websites can also give you access to other kinds 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 is a minor fee for any up to date reverse phone lookup website, but if your business or personal life requires accurate data it is money well spent in the end. The fee is unavoidable because this sort of information is not easy or free to research, pull together, and store, so issuing it on demand to consumers like you must also collect a charge to make up for these working costs.

There probably will never be a phone book for cellular numbers, and even if they were compiled it is probable many of the numbers would be unlisted as is the case with many home phone numbers right now. The only way to obtain access to such numbers is to give a nominal charge either to do a single number lookup or to join a lookup directory if you will be using the directory long term.