Many people today are looking for ways to reverse look up telephone numbers. Different people are doing so for different reasons, this includes: Catching pranksters, tracing old relatives, friends, and school/college mates, catching a cheating spouse / partner and many other such reasons.

Today technology provides for avenues to reverse lookup phone numbers that are listed. Some of the free directories that can help in this process are: Zabasearch.com, anywho.com, phonenumber.com, Infospace.com, whitepages.com, yellowpages.com and reversephonedirectory.com.

All these sites are tried and tested sources of reverse looking up your needed number. They are sure to provide you with all the details of that number easily, that is unless the number is mobile or unlisted. Finding out about these later numbers is a complicated process. These are considered to be private properties and find themselves treated like ones. Hence, they are no where to be found in public domains.

However, there are means and ways to still reach that number by using some other directories. These directories make all kinds of numbers available, whether listed or unlisted, whether public or private.

These directories work by getting information from public data base of major communication companies. Of course they additionally need to use tracking software to get to the bottom of the number. However, these ensure that which ever number you are reverse looking up, you will get information about that.

The kind of information you can get from these directories is kind of exhaustive. It includes all important background information like name of the owner of the number, present and all the past addresses, date of birth, issuing location and map, criminal records, marital status, carrier name, name of the kids and even names of neighbors and relatives!