Wuxi cancel trip code

Wuxi has cancelled the trip code, which is correct. Communication Big Data Travel Card is obtained by China Xintong Institute, China Telecom, China Mobile and China Unicom, using the "signaling data" of mobile phones, through the location of the base station where the user's mobile phone is located. From : on December 13th, 222, the "Communication Travel Card" service was officially launched.