Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
Phone2Location - Caller ID, phone number tracker, call blocker, contacts location, works offline
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.
Call Notes Pro - Call Notes Pro helps you to identify who is calling you. You won’t have to ask yourself “who is it?
Number Guru - Number Guru is an application for smartphone users for the purpose of reverse phone and caller lookup system.