How to cancel the trip code

The trip code cancellation method is as follows:

1. In my interface, click National Government Affairs.

2. In the interface of the national government service platform, click the communication big data travel card.

3. After entering the mobile phone number, click to get the verification code.

4. In the communication big data travel card interface, enter the obtained verification code.

5. In the interface of communication big data travel card, check "Agree" to authorize the operator to inquire about the information of medical treatment place within 14 days during the epidemic period.

6. Tick "Agree" to authorize the operator to inquire about the information of the places I have been during the epidemic period 14 days, and then click "Query".

Health QR code

Communication big data travel card, also equivalent to health code, is the data received by China Xintong Institute, China Telecom, China Mobile and China Unicom using mobile phones. It is obtained through the location of the base station where the user's mobile phone is located, providing free inquiry service for 65.438+06 billion mobile phone users nationwide. Mobile phone users can query all the city information they have been to before 654.38+04 days through this service.

Travel codes began to appear in February 2020. Guided by the Ministry of Industry and Information Technology, China ICT Institute, China Telecom, China Mobile and China Unicom jointly launched the public welfare travel inquiry service. At first, it was a short message query, and later it was upgraded to a scan code query. Later, the travel code was upgraded to a nationwide system.