How does Unicom query traffic?

Unicom mobile phone number can query the remaining traffic in the following ways:

1. Through the online business hall of China Unicom, click "Query-Basic Business Query-Balance Query" to query the remaining traffic.

2. Through the mobile phone business hall of China Unicom, click the menu "Service-Query-Basic Query-Residual Query" to query the remaining traffic.

3. Call the local Unicom customer service hotline 100 10 to check the remaining traffic.