Where do mobile caller ID apps retrieve caller names from?

Dr.Sunil Vaswani December 27, 2012
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From which sources do mobile caller ID apps retrieve caller names?

  1. Anonymous user
    December 29, 2012 at 9:26 am

    Public directories, e.g. whitepages.com.

  2. Yiz Borol
    December 27, 2012 at 4:49 pm

    It depends:
    If the number is saved in your contacts list, then usually the cellphone will display whatever that number has saved as the name.

    If the number is not saved then your cellphone will use the public directory and display whatever name is connected to that number in the public directory, often there is no name or the name is hidden, that's why you'll see "unknown caller" or a similar message when you're called by cellphone. Landlines will usually have a name attached to the number.

    • Dr.Sunil Vaswani
      December 27, 2012 at 5:48 pm

      Public directory is derived from user's contact list?

  3. Rajaa Chowdhury
    December 27, 2012 at 1:03 am

    I guess it is from the contact lists. However, for example if you have your Facebook contacts synced in your phone, and the facebook friend also had his contact number entered in Facebook, even those info are picked up by the caller ID as it scans all the entries in your phone contact list.

    • Dr.Sunil Vaswani
      December 27, 2012 at 5:48 pm

      and if names of same number are different in two user's phones?