How to check the travel track of telecom?

Telecom mobile phone users edit the last four digits of the short message CXMYD# ID number as 1000 1, and after authorizing to reply Y, they can realize "roaming place inquiry", and can inquire the route information of the mobile phone number in the past 15 days ~ The answer is for reference only. For more Anhui Telecom packages, please pay attention to the official account of Anhui Telecom WeChat for business information.