What does the travel card asterisk mean?

It means that the user has visited the current medium-risk or high-risk areas of the city in the previous 14 days, but it does not mean that the user has actually visited these medium-high risk areas.

Communication Travel Card, namely Communication Big Data Travel Card, is a free inquiry service for 654.38+06 billion mobile phone users nationwide, which is obtained by China Xintong Institute, China Telecom, China Mobile and China Unicom by using the "signaling data" of mobile phones. Through this service, mobile phone users can query all the city information they have been to in the previous 654.38+04 days.

Query result rule

The query results show that the visited provinces and cities (domestic), countries and regions (international) and-* * * are divided into three cards: green, yellow and red, and the rules will be adjusted in real time according to the actual situation. Within the first 14 days of the user.

The trip calculation was completed in the background of the operator, and the result was delayed by one day. For example, the travel data calculated on March 5th is before March 4th 14 days (between February 20th and March 4th). In addition, because the service uses base station data, in order to ensure continuous communication and achieve no blind area coverage, the base station signals at the junction of administrative divisions may cross-cover, resulting in deviation of the results, so it can be adjusted according to other certificates.