Travel code is the code of communication big data travel card, which is also equivalent to health code. China Institute of Information and Communication, together with China Telecom, China Mobile and China Unicom, used mobile phones to receive data, which was obtained through the location of the base station where the users' mobile phones were located, providing free inquiry service for the 654.38+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.

1. Open WeChat, click find below and enter the applet.

2. Enter the search the State Council client, find the applet, and click Enter.

3. Click Allow, and then click the Epidemic Prevention Travel Card option to enter the page.

4. After editing the mobile phone number and the received verification code, click Query.

5. Then we can see our travel itinerary on the page, just print the screenshot.