The trip card shows that it has been to a medium-risk area, and it will show up again after 14 days, with a delay of about a day or so, and generally no longer shows up after 15 days.

It's now important to show your health code when you go out, as well as your trip card, which is to see exactly what areas you've been to in those 14 days. Mainly because a lot of people have been to medium to high risk areas, and if there is a confirmed case, it is also possible to find out whether or not they have been in the same car as such a person, based on their trip.

Related information:

The "Communications Big Data Trip Card" analyzes cell phone signaling data, obtained through the user's cell phone is located in the base station, the signaling data collection, transmission and processing process is highly automated, and there are extremely stringent security and privacy protection mechanisms, with a high degree of authenticity and accuracy.

The "Big Data Travel Card" service uses base station data, and in order to ensure continuous communication and achieve coverage without blind spots, the signals of two base stations at the intersection of administrative divisions may cross-cover, resulting in deviations in the results. In addition, if you stay in a city for less than four hours, you will not be recorded.

The "trip card" analyzes cell phone signaling data and billing data, so the premise of having trip data is that the user generates such signaling and billing data in the course of using the cell phone. When you encounter this situation, you can try to make a few more calls, or turn off the Wi-Fi connection to use the 4G traffic, no problem the next day you can check the data.