Developer's DescriptionBy lukshyaAre you getting calls from unknown number? Do you want to find from where that person is calling? Mobile Trace, as the name suggests work totally offline and will find from which state/telecom operator a mobile number belongs to.Are you getting calls from unknown number? Do you want to find from where that person is calling? Mobile Trace, as the name suggests work totally offline and will find from which state/telecom operator a mobile number belongs to. THIS FREE VERSION OF APP WORKS ONLY FOR INDIAN MOBILE NUMBERS. Give it a try. Paid Version of this application coming real SOON. with lots of new features.