We all have got missed calls or SMSs from an unknown number and wondered from who it was or from where it originated. No more guess work with True Caller (India). This app for Android, which works only in India, tells you the location from where the call originated; not just the state or city, but even the telecom circle and telecom operator of the caller. There is no need for internet connection for this app to work. It also syncs with all your Google contacts. You can also find out the STD or ISD code of cities, and conversely find out the city from the STD or ISD code.
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