How long does it take to cross a city? The itinerary code will be displayed.

The itinerary code is not recorded every time you go to a place, but the time you stay there. Four hours will judge the situation. If you stay in a city for less than four hours, the system will judge that you may just pass by, such as driving or taking a detour by train, and then you won't judge that you have been to this city at this time.

Although the travel code can accurately determine the specific location of everyone, it sometimes has errors. Some netizens reported that they lived well in the original city, but there were records of going to some cities on the itinerary code. This may be due to signal cross coverage or system error. Then you can inquire by calling the operator's customer service phone. If the operator checks correctly, you can ask them to delete it.

Principles of travel code

In the process of using the mobile phone, whether talking, texting or surfing the Internet, you need to link to the base station. The specific information of each base station, including the location number, is clear to the operator.

Once you go to a place to surf the Internet or make a phone call, you will contact the base station. At this time, the base station will record your information, so the operator can clearly know where you have been, and these data will be uploaded to the run-length encoding system. You only need to scan the code to see where you have been in the last 14 days.