How to query the roaming place of Unicom number?

Personal trajectory authentication is a roaming query service opened by large operators. This new initiative relies on the operator's own big data capabilities to provide public services to owners on the premise of ensuring information security. You can send an email to the service provider to get the running track of your mobile phone in the last month, which will help to prove whether you have left the city or returned from other places in the last month. However, whether to prove the trajectory in real life requires the relevant departments to check again. Professional attention: this business is a public service, and swimming information is for reference only.

Unicom mobile phone user authentication method

Send by mobile phone: from the last 4 digits of CXMYD# ID card to 100 10, inquire about the national tourist destination information in recent 30 days, which is convenient for rework and auxiliary investigation. Free inquiry per person per day 10 times. China Unicom's tourist destination inquiry service has been launched nationwide.