Is it true that Xinyang, Henan Province is popular in other provinces now?

Yes communication big data travel code is a free inquiry service provided by China Xintong Institute, China Telecom, China Mobile and China Unicom. By using the signaling data of the mobile phone and the location of the base station where the user's mobile phone is located, the mobile phone user can inquire all the cities and cities that he has visited in the previous 14 days through this service. The travel card of communication big data shows red, but its own health code is still green. This situation does not matter, you can still travel normally, because the travel card only marks the city name of the high-risk area in red. It is only used as a travel reminder and has nothing to do with the user's health status. After 14 days, the previous information will be cleared.