iCaller Location ICaller Location (FKA i,Call Manager Ex) is a freeware application for Blackberry Smartphone
Call ID USA FREE This smart app gives you the name and address info of callers you don't know - New FREE version!
UNOS PRO - Travel UNOS PRO - Travel - UNOS PRO lets you save up to 90% on calls while you are overseas! As long as you a UNOS customer, you'll never have to worry about high roaming charges just by using the Voice In feature. Visit www.myunos
Hoiio Phone Hoiio will make your mobile phone smarter so it can slash your mobile phone bill. By using Hoiio, you will get cheaper local and IDD calls and cheaper international SMS. This all done without any hassle to remember any PIN and access number
truecaller mobile app Truecaller is the world's largest mobile phone community for mobiles, its accessible via a Web site. It finds contact details globally given name or telephone number, and has an integrated caller ID service to achieve call-blocking functionality and social media integration to keep the phonebook up-to-date with pictures and birthdays
Mobile Number Tracer Here is another useful Java application Mobile Number Tracer for Indian mobile users only who own Symbian touch screen mobiles
Mobile Check Use Mobile Check to look up mobile phone numbers to determine the mobile operator (UK only)