I've not had a single SMS/messaging spam message in the last decade. In the UK if that makes a difference, maybe we have effective laws around it? Not looked into it.
I probably get more of those now than the “we’ve heard that you’ve been in an auto accident that wasn’t your fault” robocalls.
I wonder what different telcos does differently, because I have heard about some countries where you're getting flooder by these things.
And we have a loophole that allows politicians to legally spam whenever they want.