"Communication big data itinerary card" is by the China Academy of Information and Communications Technology in conjunction with China Telecom, China Mobile, China Unicom, three basic telecommunications enterprises to use communication big data for the country's 1.6 billion cell phone users to provide free query service, is the previous SMS query itinerary service upgrade. "Communication big data trip card" based on telecommunications big data, by the three operators to provide a unified interface, only have to fill in the cell phone number, verification code and confirm my authorization, do not have to fill in the ID card number, home address, do not collect other personal information, the operation of the simpler and safer, to fully protect the user's privacy.