How to query the traffic usage of 4G network card?

You can log in to the online business hall/click convenience service > online card number inquiry, select a province, enter the ICCID card number (on the back of the USIM user card 19 or 20 digits), and click Inquiry to inquire your wireless network card number. Then log in to Unicom's online business hall with the number of the network card, and click "phone bill inquiry" > "usage inquiry" > "network card usage" to inquire about the usage flow of the wireless network card. If you can't find it through the above channels, you can also contact the local Unicom customer service for verification.