If you find that the trip code can't be brushed, check whether the distance from 20 o'clock is more than 4 hours at the first time. If it exceeds, call someone immediately, preferably for more than 3 minutes. If not, try again the next day. 1 day, it is best to have 5 calls, with an interval of 1 hour or 1.5 hours. Before 20: 00 on the same day, the interval between the first call and the last call exceeded 4 hours.
The reason why the health code does not show travel itinerary: Because this area is the hardest hit area, the health code is not issued. Temporary health codes will not be displayed during closed management. The specific delivery time needs to be notified by the local epidemic command. Check your own network. If the network is poor, it cannot be displayed. Check your information because your information is wrong.
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. Mobile phone users can query all the city information they have visited in the previous 654.38+04 days through this service.