I got my first text spam today. When I went home, I Googled “spam text message” and got the link to the FCC website to report the spam. I also reported it to AT&T and Apple (because I suspect an app I used for the first time hours before generated the spam).
EDIT: Oops! I didn’t read the details first, and it appears that my response is off-base. But I won’t remove it completely, in case it might help someone else.