Not long ago, everyone had a standard phone in their home and finding a number or address simply required opening the phone book and searching for their name. Things have grown more complex now that cell phones are in common use and many people do not even have landlines, and if they do their number may be unpublished.

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

There are two typical functions for these directories.

Locating Names

If you are getting calls from someone and only a number shows on your caller ID, or you need to figure out cell phone callers, reverse phone lookup directories can help you find out the name registered to the number in question. Just by typing in the phone number you will be able to identify the person who is responsible for the phone calls in question.

People needing 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 phone book for cell phone numbers. Others may use this when they need to find a name connected to a home phone that may be unpublished. If you have a number but don't know who it belongs to, a reverse phone lookup service can assist you.

Searching for Addresses

The other typical function 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 directories will deliver additional information as well, which may include the address of the landline or an address associated with a cell phone number.

This may not be an everyday need for some people, but it does have its uses in some situations. Such as a parent in a rush to locate a teenager who has run away or has not returned home well past curfew. If they can find phone numbers from the teenager's bedroom or cell phone a lookup directory could quickly uncover addresses as well as 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 the phone number you can access their address and get the invite in the mail without calling or tracking down other busy family.

Lookup directories can also give you access to other sorts of information, like income brackets or previous addresses, and one site even gives a map with an estimated pinpoint of the most current location.

There is a nominal price for any legitimate reverse phone lookup website, but if your business or personal situation requires accurate information it is money well spent in the long run. The fee is unavoidable because this variety of information is not simple or completely free to research, pull together, and save, so distributing it as needed to others like you must also collect a charge to make up for these working costs.

There more than likely will never be a phone book for cell phone numbers, and even if they were compiled it is probable the majority of the numbers would be unlisted just like many home phone numbers right now. The only way to obtain access to these numbers is to put up a nominal charge either to complete a one time phone number lookup or to join a lookup service if you will be using the service long term.