Not. The trip code analyzes the "cell phone signaling data", through the user's cell phone is located in the base station to obtain the location, that is, according to the cell phone number card to locate the so this is not displayed.

Communication big data itinerary card, commonly known as "itinerary code", by the information China Institute of Information and Communications Technology in conjunction with China Telecom, China Mobile, China Unicom, three basic telecommunications companies using cell phone "signaling data".

Through the user's cell phone is located in the base station location to obtain, for the country's 1.6 billion cell phone users to provide free query service, cell phone users can use the service, query my first 14 days to all the cities and cities information.

The results of the "trip code" may vary:

In order to ensure continuous communication, achieve coverage without blind spots, and provide better quality of communication services, the signals of the two base stations at the junction of the administrative divisions may cross-coverage, resulting in the deviation of the results. This is possible if the user lives close to the city boundary, or if he/she drives long distances or takes the train.

Reference: Baidu Encyclopedia-Communications Big Data Trip Card