How to check the flow of China Unicom’s supplementary card?

You can query through the China Unicom APP:

1. Download and log in to the China Unicom APP: directly click "Used Traffic" on the homepage to directly enter the balance inquiry page of your account ;

2. Select the number in the account you want to query from the "Current Number" on the page.

Warm reminder: Specific functions are based on actual page placement.