How to check the consumption of Unicom's mobile phones in the past few months?

Unicom number can be queried through the following channels:

1. Log in to the online business hall of China Unicom, and click Query-Telephone Fee Business Query-Historical Bill.

2. Download and log in to China Unicom APP, and click Service-Query-Historical Bill.

3. This machine dials the domestic Unicom hotline and turns to manual inquiry.

4. The owner himself holds the original valid ID card to inquire about his own business hall of Unicom.