Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
FCorp ID Book - ID Book is a handy, easy to use application specially designed to offer users a simple address book.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
WhosCall - WhosCall is a reliable caller ID app whose popularity has led to its adoption by many users including international media. You can now manage the numbers calling you regardless of whether they are part of your contact list or not... read more.
ThisNumber - ThisNumber helps you find phone numbers for people and businesses!
Number Guru - Number Guru is an application for smartphone users for the purpose of reverse phone and caller lookup system.