Not long ago, everyone had a landline phone in their home and finding a phone number or address was a matter of opening the white pages 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 home phones, and if they do their number may be unlisted.

Even with the invention of caller ID on most landlines, many numbers may show up without an identifying name and there are ways for callers to prevent their name from showing up. Reverse phone lookup services have responded to these changing demands to provide a very useful service to resourceful phone users.

There are two common uses for lookup directories.

Locating Names

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

People looking for lookup directories include those who need to check up on a number often calling their spouse or teenager's cell phone, since there is no public directory for cell phone numbers. Others may use this when they need to find a name registered to a home phone that is unlisted. Whenever you have a number but are uncertain who it is connected to, a reverse phone lookup service can deliver the information.

Locating Addresses

The other typical use is to locate an address for someone, whether you know the name of the person or not. Once you plug into the information connected with a certain number most directories will give 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 a common need for most people, but it does have its uses in quite a few situations. For instance, consider a parent desperate to track down a teenager who has run off or is still out long after curfew. If they can find phone numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly uncover addresses as well as names of places the child may be at that time.

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

Lookup directories can also deliver access to other sorts of information, including income brackets or address histories, and one site even gives a map with an estimated pinpoint of where the home or business is located.

There will be a nominal price for any legitimate reverse phone lookup directory, but if your business or personal situation demands particular data it is more than worth the payoff in the end. The charge is unavoidable because this variety of information is not simple or completely free to research, collect, and save, so issuing it on demand to consumers such as you must also collect a fee to cover such operational costs.

There likely will never be a public directory for cellular 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 gain access to these numbers is to pay a minor charge either to do a one time number lookup or to join a lookup service if you will need to access the directory long term.