How long has the travel card record disappeared?

Travel cards can only be deleted after 8 days. The general travel code is counted from the day of departure. Its statistical rule is that staying in this area for more than 4 hours will be recorded. Elimination will only be counted as 7 days after you return to a place for 4 hours, but places that have been there for 7 days will usually be updated during the day of 8 days.

In general, the trip code is updated once a day, and the data of the first 8 days will be updated uniformly at 8- 10 every morning; Stay in a place for more than 4 hours, open the travel itinerary code with your mobile phone, and the system will automatically record it as a way or a visit.

Since February 13, 2020, the SMS services provided by the three major operators have covered more than 200 million users.

On February 29th, 2020, SMS query was upgraded to scan code query, providing a unified web query portal.

On March 6th, 2020, the function of inquiring about overseas visiting places was launched on the "Communication Big Data Travel Card", which can inquire about the information of countries or regions visited by mobile phone users in the first 14 days, and find out the problems of false reports, false reports and travel information in time.

As of March 25, 2020, the cumulative number of inquiries has exceeded 450 million.

If you haven't had a building in a place for more than 15 days, you must reapply for your health code. In the past, your health code would disappear, so you had to recheck the information and fill it in. If you walk around a lot. If you have a health code, your code will not be eliminated.

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