App Usa-CO.com
Lists available on your Smartphone
Usa-CO.com apps
Who's Calling
Who's calling? is an innovative app that sees who is contacting you, even if he is not in your address book, between the first and second ring, it performs a quick search on the available lists and provides the name and address of the person who is calling
Who's calling ? Offers a locking system for unwanted calls and creates a blacklist
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Coming Soon
It offers its users the possibility to navigate on the site easily from the smartphone with responsive graphics and content adapted to mobile devices.
In addition, there is an upcoming app that allow all those who wish to perform searches in the telephone directory in an even more accessible and faster way.