How to find the secret connector by using the travel card

According to the New Evening News, during the epidemic, in order to lock in close contact with people, an application called Big Data Travel Card entered people's lives. Some people doubt the authenticity of this software data. If you turn off your mobile phone and take out your mobile phone card, it is actually possible.

China ICT Institute said that starting from1202 1 65438+20: 30 on October 8th, the travel card will no longer be marked with the city names of medium and high-risk areas in red, but will include the medium and high-risk areas in brackets after the city names. The remarks are only used as travel tips and have nothing to do with health status.

Service introduction:

"Communication Big Data Travel Card" is the mobile phone "signaling data" of China Xintong Institute, China Telecom, China Mobile and China Unicom, and it is a service upgrade for 654.38+06 billion mobile phone users to obtain free inquiry service through the location of the base station where their mobile phones are located.

"Communication Big Data Travel Card" is based on telecom big data, and the interface is provided by the three major operators. It only needs to fill in the mobile phone number and verification code and confirm my authorization. It doesn't need to fill in the ID number and home address, and it doesn't need to collect other personal information. The operation is simpler and safer, and the privacy of users is fully protected.

Refer to the above content: Baidu Encyclopedia-Communication Big Data Travel Card