Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Phone2Location - Caller ID, phone number tracker, call blocker, contacts location, works offline
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
Call Notes Pro - Call Notes Pro helps you to identify who is calling you. You won’t have to ask yourself “who is it?
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.
FCorp ID Book - ID Book is a handy, easy to use application specially designed to offer users a simple address book.