It used to be that everyone had a standard phone in their home and finding a number or address simply required opening the phone book and searching for the name. It is often 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 unlisted.

Even with the invention of caller ID on most landlines, a lot of numbers may show up without an identifying name and there are ways for callers to stop their details from showing up. Reverse phone lookup directories have stepped up to these changing times to offer a very timely service to modern phone users.

There are two common functions for these directories.

Locating Names

If you are receiving calls from someone and only a number is revealed on your caller ID, or you need to figure out cell phone callers, reverse phone lookup services can help you find out the name registered to the number of concern. Just by entering the phone number you will have access to the person who is responsible for those phone calls in question.

People looking for lookup directories include those who need to check up on a number frequently calling their spouse or teenager's cell phone, since there is no accessible directory for cell phone numbers. Other people may use lookup directories when they need to know a name listed 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.

Searching for Addresses

The other typical purpose is to identify an address for someone, whether you know the name of the person or not. Once you find the information linked with a certain phone number most directories will deliver other sorts of information as well, which includes the address of the home phone 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 some situations. For example, take a parent in a rush to locate a teenager who has run off or is still out well past curfew. If they can get access to numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly uncover addresses and names of places the teenager may be located.

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

Lookup websites can also deliver access to other sorts of data, such as income brackets or previous addresses, and one site even gives a map with an general pinpoint of the most current location.

There is a nominal price for any legitimate reverse phone lookup service, but if your business or personal life demands accurate data it is worth the money in the long run. The charge is necessary because this sort of information is not easy or completely free to research, pull together, and save, so issuing it as needed to people such as you must also collect a charge to make up for these operational costs.

There 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 unlisted as is the case with many landline numbers right now. The only way to gain access to such numbers is to put up a minor charge either to complete a single phone number lookup or to join a lookup service if you will be using the directory long term.