It used to be that everyone had a landline phone in their home and searching for a phone number or address was a matter of opening the white pages and finding the name. This has become more complicated now that cell phones are in common use and many people do not even have landlines, and if they do their number may be unlisted.

Even with the development of caller ID on most home phones, many numbers may show 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 demands to offer a very valuable service to modern phone users.

There are two typical functions for these services.

Locating Names

If you are receiving calls from someone and only a number is revealed on your ID, or you need to figure out cell phone callers, reverse phone lookup directories can help you find out the name registered to the phone 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 such services include those who need to check up on a number often calling their spouse or teenager's cell phone, since there is no accessible directory for cell phone numbers. Others may use this when they want to know a name connected to a landline that may be unlisted. If you have a number but aren't sure who it is connected to, a reverse phone lookup directory can assist you.

Finding Addresses

another typical function is to find an address for someone, whether you know the name of the person or not. Once you find the contact information associated with a certain phone number most directories will deliver other sorts of information as well, which includes the address of an landline or an address connected to a cell phone number.

This may not be a common need for most people, but it does have its benefits in some situations. Such as a parent desperate to find a teenager who has run off or has not returned home long after curfew. If they can come up with numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly reveal addresses as well as names of locations the teenager may be at that time.

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

Lookup directories can also deliver access to other various types of data, such as income brackets and address histories, and one site even gives a map with an estimated pinpoint to the business or home's location.

There will be a nominal price for any legitimate reverse phone lookup directory, but if your business or personal situation requires accurate information it is worth the money in the long run. The charge is necessary because this sort of information is not easy or free to research, pull together, and protect, so distributing it immediately to others such as you must also come with a charge to cover such serviceable expenditures.

There probably will never be a public directory for cell phone numbers, and even if there were most likely many of the numbers would be unlisted as is the case with many landline numbers right now. The only way to get access to such numbers is to put up a small fee either to do a one time phone number search or to join a lookup service if you will be using the directory long term.