Is the U-Friend mobile phone card mobile or Unicom?

U Friends Card is not mobile, nor Unicom, but belongs to virtual operator. Virtual operator (VNO) refers to a partner with one or more capabilities (such as technical capabilities, equipment supply capabilities, market capabilities, etc.). ) and form a cooperative relationship with telecom operators in a certain business or several businesses. Telecom operators hand over their business to virtual operator for development according to a certain proportion of interests, so that they can spare their energy to do the most important work, while telecom operators themselves directly develop users. Virtual operator is like an agent. They contracted the right to use some communication networks from three basic operators, namely China Mobile, China Unicom and China Telecom, and then sold communication services to consumers through their own billing system, customer service number, marketing and management system.