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The data isn’t public. It’s based on the friend finding feature. If you fill a contact list with phone numbers Facebook will automatically suggest the person wi
by twobitshifter 6y ago
The data isn’t public. It’s based on the friend finding feature. If you fill a contact list with phone numbers Facebook will automatically suggest the person with that number as your friend. So if you make a contact list with all possible phone numbers, you can know who they belong to.