When is the communication big data itinerary card usually updated?

1. The user’s itinerary calculation within the first 14 days was completed in the operator’s backend, resulting in a one-day delay. For example, March 5th calculates the itinerary data within the 14 days before March 4th (between February 20th and March 4th).

2. Since the service uses base station data, in order to ensure continuous communication and achieve coverage without blind spots, the base station signals of the two places at the junction of administrative divisions may cross-cover, causing deviations in the results. They can be combined when used. Other certificates shall be adjusted accordingly.

3. In addition, if you stay in a city for less than 4 hours, it will not be recorded. Overseas travel records require you to activate international roaming services while you are abroad. If there are serious deviations in the results, please contact customer service in time.

Communications Big Data Itinerary Card

Communications Big Data Itinerary Card is a joint effort between China Academy of Information and Communications Technology, China Telecom, China Mobile, and China Unicom, three basic telecommunications companies that use mobile phone "signaling data" , a query service provided free of charge to 1.6 billion mobile phone users across the country, obtained through the location of the base station where the user's mobile phone is located. Mobile phone users can use the service to query information about all the cities and towns they have visited in the previous 14 days.

As of March 25, 2020, the cumulative number of inquiries has exceeded 450 million. Starting from 20:30 on January 8, 2021, the itinerary card will no longer mark the names of cities and towns containing medium- and high-risk areas in red. Instead, it will include a bracketed note after the city name that contains medium- and high-risk areas. The note is only used as a travel reminder and does not Associated health conditions.

On March 30, 2021, the national government service platform "Epidemic Prevention Health Code" has integrated information related to the "Communication Big Data Itinerary Card", which can display in the health code whether the user has been to medium- and high-risk areas, etc. The itinerary information has been obtained. On August 5, 2021, the Joint Prevention and Control Mechanism of the State Council held a press conference. The "communication itinerary card" has provided query services for more than 12 billion times, becoming an important means for various regions to prevent and control the epidemic.