How is it that the mobile phone receives this short message from a number other than the mobile phone number from time to time?

Most of this information is advertising information, and some of it is even Trojan virus information. Please remember carefully! Don't click to view, many Trojan viruses will be downloaded and installed automatically as long as you open them, and will be installed on your mobile phone without your consent, even if you want to uninstall them. Poisoning may cause information leakage, or it may automatically record and forward your bank card password and card number, thus stealing money from your card. So the best way to deal with this kind of information is to delete it, so as not to delay time.