A variant of Verizon's IN calling program gave customers discounts when they identified the names and telephone numbers of up to 20 people whom they frequently called.This is an example of

Question

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The program is targeting networks of individuals by encouraging customers to identify the names and phone numbers of their frequent contacts, which typically form a network of people who communicate with each other regularly.

A Variant of Verizon's IN Calling Program Gave Customers Discounts