How to check SMS operation through SMS operator

The method of checking SMS operation by SMS operator is as follows.

1. At present, three basic telecom companies, China Mobile, China Telecom and China Unicom, provide users with the service of visiting places within 14 days under the authorization of users and based on telecom big data analysis.

2. Send cxmyd to (Telecom)/(Mobile)/(Unicom), and you can find out the information of provinces and cities I have been to in the past 14 days. You can use this short message to prove your itinerary to employers, community management and other departments.