Reverse phone lookup is big right now. Many people have just discovered it so they've gone crazy checking all their lists of anonymous telephone numbers that they have in order to establish who the numbers belong to. But reverse phone lookup is not new. In fact, it has been around for a very long time. The only difference these days is the internet which has made it extremely fast and easy to perform searches online.

To look up the registered owner of a phone number that you have, you need access to a reverse phone directory. This is a database of phone numbers/ records with their associated ownership information such as the name, email and physical address of the registered owner. The way they work is quite simple really. You start with a phone number and enter it in a search box. The search system will them search the phone number database for a match. Once a match is found the associated information such as name and physical address will be displayed so that you can print or copy down the details. All this happens within a few minutes. You can conduct searches in the same way that you search for information on search engines like Google or MSN. The main difference is that a reverse phone directory is a specialised search engines which only features people information and their contact details.

Compare reverse phone directories to hiring a private investigator to do the research for you. Private investigators have access to research phone directories plus a lot of other sources and methods of finding information. So you'll be more or less guaranteed a result but you will have to pay more. If you have a list of phone numbers that you would like to lookup, you are better off getting your own access to a reverse phone search directory. The good ones charge a small one-time fee for unlimited searches and lifetime access.

There is also a third option but with this method, finding the details you require is not guaranteed. This involves using the major search engines to look for information online about the phone number. If you are lucky enough to find the information, this could be a free way to conduct a reverse phone lookup online without going through the trouble of looking for someone to do it for you.

But by far the most popular and the quickest way to do a reverse phone lookup is to use an online reverse search directory.

Click here for a comprehensive list of reverse phone lookup directories online