Truecaller 2015 Truecaller is replacing the phonebook to make it more intelligent and useful. It lets you search beyond your existing contact list, identify unknown incoming calls, block calls you donít want to receive, and make personal contact suggestions based on time and place
call logs Call logging is the process of collecting phone call data, analysing this data, and then reporting on the telephone network's cost, performance, capacity and quality of service (QoS)
Call ID USA FREE This smart app gives you the name and address info of callers you don't know - New FREE version!
Shaplus mobile number info(SIGNED) Enter first 4 or 5 digits of any Indian mobile number and it will show the location and mobile operator of that number. It is an offline application so no need of Internet or GPRS connection. Useful to trace origin of miss calls you receive
Mobile Number Tracer Here is another useful Java application Mobile Number Tracer for Indian mobile users only who own Symbian touch screen mobiles