What is a communication data itinerary card?

"Communication Data Itinerary Card" is an itinerary inquiry service. "Communications Data Itinerary Card" is a public welfare itinerary inquiry service jointly launched by China Academy of Information and Communications Technology, China Telecom, China Mobile, and China Unicom under the guidance of the Ministry of Industry and Information Technology. It can provide users with free information about the countries (regions) they have visited in the past 14 days. And domestic cities where you stayed for more than 4 hours prove that the data is relatively accurate.

The operating environment of this tutorial: HarmonyOS 2.0 system, HONOR V30 mobile phone.

Communication big data itinerary card is an itinerary inquiry service

Communication big data itinerary card is guided by the Ministry of Industry and Information Technology, China Academy of Information and Communications Technology, China Telecom, China Mobile, China Unicom The public welfare itinerary inquiry service jointly launched by mobile phones uses the "signaling data" of mobile phones to obtain it through the base station location of the user's mobile phone. It provides free inquiry services to 1.6 billion mobile phone users across the country. Mobile phone users can use the service to inquire about their first 14 days. Information about all cities and towns visited during the day.

Service Introduction

"Communications Big Data Itinerary Card" is a mobile phone "signaling data" jointly developed by China Communications Academy and three basic telecommunications companies, China Telecom, China Mobile and China Unicom. ", which provides free query services to 1.6 billion mobile phone users across the country through the base station location of the user's mobile phone, which is an upgrade to the previous service of querying the itinerary through text messages.

"Communications Big Data Itinerary Card" is based on telecommunications big data, and the interface is provided by the three major operators. You only need to fill in your mobile phone number, verification code and confirm your authorization. There is no need to fill in your ID number or home address. Collect other personal information, the operation is simpler and safer, and user privacy is fully protected.

Technical Principle

"Communication Big Data Itinerary Card" analyzes "mobile phone signaling data", which is obtained through the base station location of the user's mobile phone. The signaling data The collection, transmission and processing processes are automated, with strict security and privacy protection mechanisms in place, and query results are available in real time, conveniently and quickly. The data of the "Communications Big Data Itinerary Card" can be used nationwide, truly achieving comprehensive coverage of the country on one network, and you can also check the international itinerary of your domestic mobile phone number. On the premise of ensuring the security of user information, these will provide scientific and accurate technical support for epidemic prevention and control, resumption of work and production, road access, entry and exit, etc.

The location query service data source provided by the itinerary card is "mobile phone signaling data", which is obtained through the base station location of the user's mobile phone. In order to ensure continuous communication, achieve coverage without blind spots, and provide better communication service quality, the base station signals of the two places at the junction of administrative divisions may cross-cover, causing deviations in the results. This may happen if the user lives close to a city boundary, or drives long distances, takes a train, etc.

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