It used to be that everyone had a landline phone in their home and locating a phone number or address simply required opening the yellow pages and finding the name. Things have grown more complex now that cell phones are widely used and many people do not even have landlines, and if they do their number may be unpublished.

Even with the development of caller ID on most home phones, some numbers may come up without an identifying name and there are ways for callers to prevent their name from appearing. Reverse phone lookup services have responded to these changing times to provide a very timely service to modern phone users.

There are two common uses for these directories.

Finding Names

If you are receiving calls from someone and only a number shows on your ID, or you need to figure out cell phone callers, reverse phone lookup services can assist in finding the name listed to the number of concern. Just by typing in the number you will have access to the person who is initiating those phone calls in question.

People looking for lookup directories include those wanting to identify a number constantly calling their spouse or teenager's cell phone, since there is no accessible directory for cell phone numbers. Others may use this when they need to find a name connected to a home phone that is unpublished. If you have a number but aren't sure who it belongs to, a reverse phone lookup directory can help.

Searching for Addresses

another common purpose is to locate an address for someone, whether you know the name of the person or not. Once you find the contact information linked with a particular phone number most services will deliver additional data as well, which includes the address of an home phone or an address listed to a cell phone number.

This may not be a common need for some people, but it does have its uses in quite a few situations. For example, take a parent desperate to track down a teenager who has run away or is still out long after curfew. If they can find phone numbers from the teenager's belongings or cell phone a lookup directory could quickly uncover addresses as well as names of places the teenager may be at that time.

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

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

There will be a small charge for any legitimate reverse phone lookup directory, but if your business or personal situation demands certain information it is worth the money in the end. The fee is required because this sort of information is not easy or free to research, pull together, and store, so issuing it on demand to people such as you must also collect a fee to account for these serviceable expenditures.

There more than likely will never be a public directory for cellular numbers, and even if they were compiled it is probable many of the numbers would be unlisted as is the case with many home phone numbers today. The only way to gain access to these phone numbers is to put up a minor charge either to complete a single number lookup or to join a lookup directory if you will need to access the service on a regular basis.