Call someone in the police station, you can find out a person's ID number and address, age, date of birth, and nothing else. If the police station knows a person's name, it can find out his personal information, because now the public security system has enabled the citizen comprehensive information inquiry system "police".
If you can enter your name or ID number, you can find his information, but this information can only be registered information or information that has been punished. It should be registered with a phone number, but it is not necessarily the number you are using now. You can also find out: spouse, family situation, household registration change, temporary address, hotel, public security punishment, etc.