The travel card can display several hours of records.

Travel itinerary can check everyone's footprints in 14 days, and you can see where you have been. According to your itinerary, there are risks, which is an effective certificate for epidemic prevention and control. In general, travel cards will not be recorded until they stay in one place for more than 4 hours. If it is less than 4 hours, it may not be displayed. It depends on the specific situation.

How long does travel itinerary not show the cities it has visited? Unless you stay for a very short time, less than 4 hours, you may not show where you have been, but this possibility is relatively low.

In order to avoid the location deviation caused by the coverage of base stations in surrounding cities, the travel card is set to meet the judgment condition of living for 4 hours. There are also some tips when making a phone call: within one day, the time span between the earliest call record and the latest call record needs to be more than 4 hours (for example, once at 7:00 am and once at 12:00 pm) to meet the requirements and display the itinerary.

The same principle applies to the use of traffic. The verification code of the communication travel card is issued by the SMS gateway of each operator. If the number of requests is too large in a short time, resulting in SMS congestion (such as peak hours), you will not receive the verification code.

How can travel itinerary not show where it has been? Travel itinerary's urban record cannot be erased.

The the State Council client applet was launched, and the China Institute of Information Technology of the Ministry of Industry and Information Technology and three operators jointly launched the big data travel card for epidemic prevention communication. Using the communication big data of China Telecom, China Mobile and China Unicom, it provides travel inquiry service for 654.38+06 billion mobile phone users nationwide.

Support one-click query of countries (regions) and domestic cities visited within 14 days (staying for more than 4 hours). The epidemic prevention card does not need to fill in the ID number and home address, and does not collect other personal information. The operation is more convenient and safe, and the privacy of users is fully protected.

Because the location query service provided by the travel card comes from the signaling data of the mobile phone and is obtained through the location of the base station where the user's mobile phone is located. In order to ensure the continuity of communication, realize the coverage without blind areas and provide better communication service quality.

The signals of two base stations located at the junction of administrative divisions may cross-cover, resulting in deviation of the results. This may happen if the user lives near the city boundary, or takes a long-distance self-driving car, train, etc.

According to the location of the travel card, it is determined by the base station information of the mobile phone, so your mobile phone needs to communicate with the base station to determine the itinerary. If you make a phone call from a different place, record it from a different place.

Legal basis: Article 3 of the Road Traffic Safety Law of the People's Republic of China.

Road traffic safety work should follow the principle of management according to law and convenience for the masses, and ensure orderly, safe and smooth road traffic.