It used to be that everyone had a landline phone in their home and finding a phone 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 unlisted.

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

There are two typical uses for these services.

Finding Names

If you are getting calls from someone and only a number shows on your ID, or you want to identify cellular phone callers, reverse phone lookup services can assist in finding the name listed to the number in question. Just by typing in the phone number you will have access to the person who is responsible for those bothersome phone calls.

People in search of lookup directories include those wanting to check up on a number constantly phoning their spouse or teenager's cell phone, since there is no public directory for cell phone numbers. Others may use lookup directories when they want to find a name connected to a home phone that is unpublished. Whenever you have a number but don't know who it is connected to, a reverse phone lookup directory can help.

Finding Addresses

The other common function is to locate an address for someone, whether you know their name or not. Once you gain access to the information connected with a particular number most services will deliver additional information as well, which includes the address of the home phone or an address connected to a cell phone number.

This may not be an everyday need for most people, but it does have its uses in some situations. Such as a parent desperate to locate a teenager who has run off 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 reveal addresses as well as names of places the child may be at that time.

Other circumstances may be searching for addresses to mail out party invitations to your child's peers. If you have the phone number you can access their address and mail out the invitation without calling and tracking down other busy people.

These services can also give you access to other kinds of information, such as 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 demands certain data 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, compile, and save, so issuing it as needed to consumers like you must also include a charge to cover such operational costs.

There likely will never be a public directory for cell phone numbers, and even if they were compiled most likely the majority of the numbers would be unlisted as is the case with many landline numbers today. The best way to get access to these phone numbers is to pay a small fee either to do a one time number search or to join a lookup service if you will need to access the service long term.