How does China Unicom inquire about the itinerary?

Unicom users can send the short message "CXMYD# this mobile phone number corresponds to the last four digits of the network registration certificate" to 100 10 to check.

You can also log in to the mobile phone business hall and click on the home page "Services" > "Anti-epidemic" > "Travel Assistant for Prevention and Control" to view it. Tips: The above paths are subject to the information actually displayed on the query page.