Communication Big Data Travel Card is a free inquiry service for 654.38+06 billion mobile phone users nationwide, which is obtained by China Xintong Institute, China Telecom, China Mobile and China Unicom by using the "signaling data" of mobile phones. Through this service, mobile phone users can query all the city information they have been to in the previous 654.38+04 days.
"Communication Big Data Travel Card" is the mobile phone "signaling data" of China Xintongyuan, China Telecom, China Mobile and China Unicom. Through the location of the base station where the user's mobile phone is located, it obtains the free inquiry service of 654.38+0.6 billion mobile phone users nationwide, which is an upgrade of the previous itinerary inquiry service through SMS.
The "Communication Big Data Travel Card" is based on telecom big data and is provided by the three major operators. It only needs to fill in the mobile phone number, 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.