The trip code is not directly related to the cell phone card. The travel code is tied to the ID card number and is not directly related to the cell phone number. However, if you use another person's cell phone number, the itinerary code will change according to the ID card holder.

Changes in the use of the trip card: communications big data trip card is by the China Academy of Information and Communications Technology in conjunction with China Telecom, China Mobile, China Unicom, three basic telecommunications enterprises using communications big data for China's cell phone users to provide free query service, cell phone users can use the service, query the information of all the cities and municipalities that I have been to in the previous 14 days.2021, January 8, 20:30 onwards, the trip card will not be Mark the names of cities and towns that contain medium and high risk areas in red, and change to note in parentheses after the name of the city that it contains medium and high risk areas, and the note is only as a travel reminder and is not related to the health status.