A: communication big data itinerary card, is by the China Academy of Information and Communications Technology, China Telecom, China Mobile, China Unicom three basic telecommunications enterprises using cell phone "signaling data", through the user's cell phone is located in the location of the base station to obtain, for the country's 1.6 billion cell phone users free query service, cell phone users can be through the service, the service. The service allows mobile phone users to inquire about all the cities and towns they have visited in the previous 14 days.

All over the country, the resumption of work and production, the flow of people showing a rising trend, at the same time the rapid spread of overseas epidemics, preventing the import of epidemics outside the country as the current prevention and control of the work of the key, all sectors of the community on the individual domestic and foreign travel within 14 days of the strong demand for checking. In this context, China Telecom, China Mobile, China Unicom, China Academy of Information and Communications Technology *** with the launch of an upgraded version of the "communications itinerary card", without having to fill in the information can query the user's own domestic stay within the first 14 days of the 4 hours of the city and the country visited abroad, the data is relatively accurate, easy to use.

What are the main functions of the Communication Itinerary Card?

1. The Communication Itinerary Card query service is mainly for Chinese cell phone users, and is able to query the individual's domestic and international itinerary within the previous 14 days, accurate to the province and city at home and to the country abroad. The query is initiated by the user on his/her own initiative, and can be made by downloading the cell phone APP or using WeChat applet or webpage, etc. Entering the cell phone number and clicking on it to get the verification code, and clicking on the query after the successful verification, the query result can be returned.

2. Version 2.0 of the Communication Trip Card APP has added a Bluetooth close contact reminder function, so that if a stranger who has been in close contact with you is diagnosed as a confirmed/suspected patient of New Crown Pneumonia, the use of our service will remind you to pay attention to isolation and observation in a more timely manner.

Note:

①Newly opened card users and users who have switched to a different network can only use the trip query service after 14 days

②Temporary does not support the cooperation of the operator of a card in multiple number of deputy number of trip query