Not long ago, everyone had a landline phone in their home and locating a phone number or address was a matter of opening the yellow pages and searching for their name. Things have grown more complex 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 development of caller ID on most landlines, 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 services have responded to these changing times to provide a very timely service to resourceful phone users.

There are two common functions for these directories.

Finding Names

If you are receiving calls from someone and only a number comes up on your ID, or you need to figure out cellular phone callers, reverse phone lookup directories can help you find out the name registered to the number of concern. Just by typing in the number you will have access to the person who is initiating the bothersome phone calls.

People needing such services include those who need to check up on a number often texting their spouse or children's cell phone, since there is no accessible directory for cell phone numbers. Others may use this when they want to identify a name registered to a home phone that may be unlisted. Anytime you have a number but don't know who it belongs to, a reverse phone lookup service can help.

Searching for Addresses

another common function is to locate an address for someone, whether you know the name of the person or not. Once you gain access to the contact information associated with a specific number most directories will deliver additional information as well, which may include the address of an landline or the address listed to a cell phone number.

This may not be a common need for some people, but it does have its benefits in quite a few situations. Such as a parent needing to find a teenager who has run away or has not returned home long after curfew. If they can get access to numbers from the teenager's belongings or cell phone a reverse phone lookup could quickly reveal addresses as well as names of places the teenager may be at that time.

More common circumstances may be searching for addresses to mail 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 parents.

Lookup directories can also deliver a connection to other various types of information, like income brackets and 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 up to date reverse phone lookup directory, but if your business or personal life demands accurate data it is worth the money in the end. The charge is necessary because this kind of information is not easy or free to research, compile, and protect, so distributing it as needed to others like you must also collect a fee to make up for these operational costs.

There probably will never be a public directory for cellular numbers, and even if there were most likely the majority of the numbers would be unlisted as is the case with many home phone numbers right now. The best way to get access to such numbers is to put up a nominal charge either to do a one time phone number search or to join a lookup directory if you will need to access the service on a regular basis.