It used to be that everyone had a landline phone in their home and locating a number or address simply required opening the yellow pages and searching for their name. It is often more complicated now that cell phones are widely used and many people do not even have home phones, and if they do their number may be unpublished.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 home phones, a lot of numbers may show up without an identifying name and there are ways for callers to block their name from coming up. Reverse phone lookup providers have stepped up to these changing times to provide a very timely service to modern phone users.

There are two common uses for these services.

Locating Names

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

People looking for this service include those wanting to identify a number often phoning 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 registered to a home phone that is unlisted. Anytime you have a number but are uncertain who it is connected to, a reverse phone lookup service can help.

Locating Addresses

another common use is to find an address for someone, whether you know the name of the person or not. Once you gain access to the information linked with a certain number most services will deliver other sorts of information as well, which may include the address of the home phone or the address associated with a cell phone number.

This may not be a common need for some people, but it does have its benefits in some situations. For example, take a parent needing to find a teenager who has run off or is still out long after curfew. If they can get access to numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly tell them addresses and names of locations the teenager may be at that time.

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

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

There is a minor fee for any legitimate reverse phone lookup directory, but if your business or personal situation requires particular data it is more than worth the payoff in the end. The fee is required because this variety of information is not easy or completely free to research, pull together, and save, so distributing it on demand to people like you must also come with a charge to make up for these working costs.

There probably will never be a phone book for cellular numbers, and even if there were most likely many of the numbers would be unpublished just like many home phone numbers today. The best way to obtain access to these numbers is to give a small charge either to complete a one time phone number lookup or to join a lookup directory if you will be using the service long term.