Can I still find the travel track when I take out my sim card?

Take out the sim card, and you can also find the travel track.

Turning off the card does not affect the positioning of the mobile phone. You can still find it by unplugging the calling card. Unless the SIM card is unplugged at the same time as the battery of the mobile phone, no matter where you are, the geographic information will be known to the relevant parties through the mobile phone.

However, in real life, people's commonly used smart phones are basically all-in-one machines. Under normal circumstances, mobile phone batteries can't be taken out. Many softwares can surf the Internet even when the mobile phone is turned off. As long as the phone is turned on, it will try to access the base station. Once the base station recognizes the mobile phone, even if there is no SIM card, it can relate its related information through the unique identification number IMEI of the mobile phone.

Personal trajectory query method

First, the query method of telecom mobile phone users

Edit the last four digits of the short message CXMYD# ID number as 1000 1, and authorize reply Y to realize "roaming place query", which can query the route information of the mobile phone number in the past 15 days.

Second, Unicom mobile phone users query method

The mobile phone sends "the last four digits of CXMYD# ID card" to 100 10 to inquire about the information of domestic roaming places in the past 30 days, which is convenient for rework and auxiliary investigation.

Third, the mobile user query method

Write CXMYD, send it to 10086, and then enter the last four digits of your ID card according to the reply information, and you can query the provinces and cities (no cities) you have been to in the last month.