How to check the roaming location of mobile phone users

Specific methods for querying roaming locations of the three major operators:

China Unicom: Send "CXMYD#last four digits of ID card" to 10010 on your mobile phone to query national roaming location information for the past 30 days , to facilitate rework assistance and troubleshooting.

China Telecom: Send "CXMYD#last four digits of ID card" to 10001 with your mobile phone. After authorizing the reply Y, you can realize "roaming location query", which can query the location information of the mobile phone number in the past 15 days.

China Mobile: Send "CXMYD#last four digits of ID card" 10086 to your mobile phone, and then enter the last four digits of your ID card based on the reply text message to query the provinces and municipalities (without prefectures) you have visited in the past month ), each person can check 10 times a day for free.