What is the red itinerary code?

Ride codes come in four colors: red, orange, yellow and green.

Red: The itinerary code is red, representing confirmed cases or suspected cases of COVID-19.

Orange: The travel code is orange, representing close contacts of COVID-19.

Yellow: The travel code is yellow, which means you have been to a medium-risk area.

Green: The travel code is green, which means the current environment is safe and you are not a suspected patient or close contact with COVID-19.

Principle of trip code:

Use mobile phone signaling data to obtain user location information through the base station location of the user's mobile phone. The communication big data itinerary code is a query service provided free of charge to mobile phone users across the country by the China Academy of Information and Communications Technology and three basic telecommunications companies, China Telecom, China Mobile and China Unicom, using mobile phone signaling data to obtain the base station location of the user's mobile phone. Mobile phone users can use the service to query information on all cities and towns they have visited in the past 14 days.

In order to implement differentiated prevention and control strategies based on zoning, classification, and time sharing in each province, we will promote the resumption of work and production of enterprises and the safe and orderly flow of personnel. People with green codes in medium and low-risk areas of each province can travel throughout the province; people with green codes in high-risk areas must travel in accordance with the regulations of the local prevention and control headquarters. The travel rules within the county are determined by the county (city, district) prevention and control headquarters. Traffic rules within the city are determined by the city (state) prevention and control headquarters.