The communication travel card has expired.

Communication travel card exceeds the validity period, and communication travel card exceeds the validity period. Generally speaking, the key to a tourist card has a time limit. If this key is not used at the specified time, it will expire and the system needs to resend the key.

Brief introduction of communication travel card

Communication Big Data Travel Card is a free inquiry service provided by China Xintong Institute, China Telecom, China Mobile and China Unicom for 654.38+06 billion mobile phone users nationwide by using communication big data, which is an upgrade of the previous travel inquiry service through SMS.

The communication big data travel card is based on telecom big data, and the interface is provided by the three major operators. It only needs to fill in the mobile phone number, verification code and confirm my authorization. It doesn't need to fill in the ID number and home address, and it doesn't need to collect other personal information. The operation is simpler and safer, and the privacy of users is fully protected.

The data source of location query service provided by travel card is mobile phone signaling data, which is obtained through the location of the base station where the user's mobile phone is located. In order to ensure communication continuity, realize coverage without blind areas and provide better communication service quality, the signals of base stations in the two places at the junction of administrative divisions may cross-cover, resulting in deviation of results. This may happen if the user lives near the city boundary or travels long distances by car or train.