Recently, a friend told me that I often receive short messages showing my mobile phone number, and the content is very bad, but I am not a liar who swindles money or anything.

I suspect that your number is quilted, but the list of 10086 can also be found. It is strongly recommended that you take your friend's mobile phone to the mobile business hall ~ show the bills of the two mobile phones to the people in the business hall and see how they explain them.