What does it mean to add +67 before the public security bureau number?

The number before the number 67 of the Public Security Bureau is a marketing scam call. It is usually a computer simulation operation and a phone call robot.

Pretend to be a public prosecutor and commit fraud. This method takes advantage of the victim's fear of the public prosecutor and the law to carry out the fraud step by step. By saying that you are in arrears, and then saying that it involves major economic fraud or crime, it further intimidates the victim, making the victim psychologically fearful and causing him to provide personal information for fraud

Nowadays, mobile phones have become an indispensable part of most people’s daily lives. During use, we often receive some harassing calls and spam text messages. We can set up a black and white list on our mobile phones, and the user’s phone number in the white list It will be passed with priority, and the phone numbers in the blacklist will be automatically blocked. At the same time, you can also report through the 12321 website. For these numbers that violate the rules and send spam text messages, the operator will take measures such as shutting down the phone and blacklisting them.