Will the train code change after passing Changde Railway Station?

As long as the health code is not in the middle and high risk area, there is no problem. When the travel card stays in the administrative area where the medium-high risk area is located for more than 4 hours in the last 14 days, it will automatically record the place and mark it in red. In this case, the local epidemic prevention department may let you register, and then you can go. If you need to do nucleic acid testing, you will call one by one. If the test is negative, it is generally not isolated in low-risk areas in China.

introduce

"Communication Big Data Travel Card" is the mobile phone "signaling data" of China Xintong Institute, China Telecom, China Mobile and China Unicom, and it is a service upgrade for 654.38+06 billion mobile phone users to obtain free inquiry service through the location of the base station where their mobile phones are located.

"Communication Big Data Travel Card" is based on telecom big data, and the interface is provided by the three major operators. It only needs to fill in the mobile phone number and verification code and confirm my authorization. It doesn't need to fill in the ID number and home address, and it doesn't need to collect other personal information. The operation is simpler and safer, and the privacy of users is fully protected.