Reverse phone lookup is an online service available on various websites. These websites provide reverse cell phone directory to facilitate reverse phone lookup service. These search engines provide specific search information about an individual when you use a phone number as the search criterion. At present, you can find several such websites offering this service. These websites promise to provide any information about somebody just by searching with a phone number.

These reverse phone lookup websites try to search the phone number entered with all the databases on the web and extract any related information. Many phone number searches may only provide name or address; however, phone numbers associated with users who extensively use social networks, weblogs and chatting services may provide a large set of related information. If you are lucky, apart from name, age and address associated with a number, you may possibly find names of close relatives, children, spouses, personal dates such as birthdays and marriage anniversaries, marital status, income and home value. The probability of finding more and more information from these services is increasing day by day as the information on the internet databases is increasing by leaps and bounds. A major contributor to the growth of these internet databases is the increasing amount of time spent by people on social networking sites such as facebook, twitter and others.

You can get limited information for free on these reverse phone lookup websites. Free information is generally the identity of the person registered against the number and the mailing address. You have to use paid services of these websites to get more personal information related to a number. You can also get a background check done for a certain fee. Privacy laws do not allow availability of all the personal information for free.

The reverse phone lookup services are authorized services. Most of the information gathered by these reverse phone lookup websites is entered by the individual himself for various reasons. The search engine just presents all the available information onto a single webpage. However, you cannot access secured databases to get information such as credit card numbers, bank account numbers and other sensitive information using these reverse phone lookup search engines.

You may wonder about the circumstances in which these services are genuinely required. Law enforcement bodies and personal investigators always found these search engines useful for their work. But, now even individuals genuinely use these reverse phone lookup search engines to track prank callers, to locate out of touch family members and companies. You also use these websites to track unknown numbers that show up on your phone bill.

You must also know that there are certain problems and caveats associated with reverse phone lookup searches which must be properly understood. These reverse phone lookup websites have varying sizes of databases that directly affects the accuracy of their search results. A larger database used for reverse phone lookup will provide more accurate information. Also, there is every possibility that the information provided by these search engines is outdated. This is mainly because people change phone numbers often.