Can Unicom's secondary card query the information of the main card?

The main and secondary cards can only query the bill, the membership of the main and secondary cards and the usage of the main card package business through all channels such as Internet lobby, mobile phone business hall, 100 10 self-service voice and business hall. (The display requirements for package business are subject to the main card package). The main card and the auxiliary card can only query the detailed list of mobile phone numbers.