No 1 Caller LookUp - Award winning app makes your phone smarter and your life easier. Get the name of who is calling you, even if they are not in your contacts; alternative businesses when you cannot reach a merchant; reverse number search facility; call blocker; contact synchronization, and Facebook ID to see your Facebook friends? photo/status as they call. In cooperation with Yellowbook, Yellowpages.ca & international directories. Extra Features: * Reverse number search allows you to do a manual number-to-name search. * Update contacts adds additional data from directories (e.g. address) to your existing contacts * Call blocker diverts calls from withheld numbers and numbers you define straight to your voicemail * You can also link the app with your Facebook account which allows you to see your realtime friends'' status and photo when they call. *Please note 3G required for Caller Lookup. Withheld numbers cannot be identified.