How many days can the itinerary card be used to cancel out-of-town itineraries?

The itinerary card can be used to cancel out-of-town itineraries within 7 days.

Communication big data itinerary card, commonly known as "itinerary code". It is a query service provided free of charge to 1.6 billion mobile phone users across the country by the China Academy of Information and Communications Technology and three basic telecommunications companies, China Telecom, China Mobile and China Unicom, using mobile phone "signaling data" to obtain it from the base station location of the user's mobile phone. Through the service, you can check the information of all the cities that you have visited in the past 14 days.

As of March 25, 2020, the cumulative number of inquiries has exceeded 450 million.

Starting from 20:30 on January 8, 2021, the itinerary card will no longer mark the names of cities and towns containing medium- and high-risk areas in red. Instead, it will mark the names of cities and towns containing medium- and high-risk areas in brackets after the city names. Notes are only used as travel tips and are not related to health conditions. On March 30, the national government service platform "Epidemic Prevention Health Code" has integrated information related to the "Communication Big Data Itinerary Card", which can display the user's itinerary information such as whether they have been to medium- and high-risk areas in the health code, helping the health code "one code pass". On August 5, the Joint Prevention and Control Mechanism of the State Council held a press conference. The "communication itinerary card" has provided query services for more than 12 billion times, becoming an important means for epidemic prevention and control in various places.

Users directly search for "health code" in Baidu App, and the search results can simultaneously display the user's local health code and the "epidemic prevention health information code" of the national government service platform. The "Communication Big Data Itinerary Card" information column has been integrated under the "Health Code" on the "Epidemic Prevention Health Information Code" page, which can display travel information such as whether the user has been to medium- and high-risk areas.

In September 2021, in order to help people travel safely, the national government service platform integrated the health code and itinerary code into a "one-page view". When you open the health code in Alipay, you can see the itinerary code at the same time. This means that the health code and itinerary code have been fully integrated into one page on one page across the country.

Technical Principle

"Communication Big Data Itinerary Card" analyzes "mobile phone signaling data", which is obtained through the location of the base station where the user's mobile phone is located, and the signaling data is collected and transmitted. And the processing process is automated, there is a strict security and privacy protection mechanism, and the query results are available in real time, conveniently and quickly. The data of the "Communications Big Data Itinerary Card" can be used nationwide, truly achieving comprehensive coverage of the country on one network, and you can also check the international itinerary of your domestic mobile phone number. On the premise of ensuring the security of user information, these will provide scientific and accurate technical support for epidemic prevention and control, resumption of work and production, road access, entry and exit, etc.

The location query service data source provided by the itinerary card is "mobile phone signaling data", which is obtained through the base station location of the user's mobile phone. In order to ensure continuous communication, achieve coverage without blind spots, and provide better communication service quality, the base station signals of the two places at the junction of administrative divisions may cross-cover, causing deviations in the results. This may happen if the user lives close to a city boundary, or drives long distances, takes a train, etc.

Development History

Since February 13, 2020, the SMS itinerary query service provided by the three major operators has covered more than 200 million users.

On February 29, 2020, SMS query was upgraded to scan code query, and a unified web page query entrance was provided.

Starting from March 6, 2020, the "Communications Big Data Itinerary Card" has launched a query function for overseas places visited, which can provide information about overseas countries or regions visited by mobile phone users in the previous 14 days. By conducting inspections, problems with concealment, omission, and false declaration of itinerary information can be discovered in a timely manner.

As of March 25, 2020, the cumulative number of inquiries has exceeded 450 million.

In September 2021, in order to help people travel safely, the national government service platform integrated the health code and itinerary code into a "one-page view". When you open the health code in Alipay, you can see the itinerary code at the same time. This means that the health code and itinerary code have been fully integrated into one page on one page across the country.

Communication big data supports epidemic prevention and control entering the 2.0 stage, and "digital epidemic war" plays a major role.

We will make every effort to promote the 2.0 upgrade of the communications big data platform, give full play to the leading role of regional collaborative investigation, and immediately analyze and issue more than 67 million pieces of various regional collaborative investigation data to help win the battle against epidemic prevention and control across the country. The "communication itinerary card" service has been optimized and upgraded, with a cumulative query of more than 25 billion times, greatly facilitating the people's daily travel and production and life.

The Ministry of Industry and Information Technology also stated that it will simultaneously promote service quality improvement and user rights and interests protection, information and communication services for people's livelihood will be deepened and solid, and the potential of digital benefits for the people will be released. Vigorously improve 5G service levels and actively create a consumer environment that satisfies users. In-depth promotion of special rectification of APP infringement of user rights and spam information, completed technical testing of 1.92 million APPs throughout the year, the number of spam user complaints dropped to a historical low, and the protection of user rights and interests was effectively strengthened.

Starting at 8:30 in the morning on March 14, 2022, the reporter received reports from many readers that the itinerary card could not be opened. "The health code can be opened, but the itinerary card cannot be opened. It reminds me that the network is unstable."