Tip: Mobile Unicom Telecom can check its travel track.

There is a simple way to know your trajectory in the last month, except by memory.

Through a string of codes, you can find out which cities you have been to from the mobile phone operator.

Is this method familiar? Yes, that's how the communication itinerary card shows the places you have been.

The method is as follows.

Telecom mobile phone users can query the travel information of the mobile phone number in recent 1000 14 days by editing the last four digits of the short message CXMYD# ID number.

According to the actual measurement, the telecom mobile phone did receive a track feedback message after sending the message.

Unicom mobile phone users send short message CXMYD# ID card and then go to 100 10 to inquire about the national roaming information in the past 14 days.

The actual measurement is no problem, and the cities I have been to also have SMS feedback.

Mobile users can write short message CXMYD+ ID card and send it to 10086, so they can query the cities they have visited in the past 14 and 15~30 days.

The actual measurement is no problem, so feel free to use it.

After all the measurements, it can be used.

However, can this be used for other purposes, such as ...

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