I guess I'll wade in with how I slowed down the calls.
Putting your name on the Do-Not-Call does absolutely nothing to prevent this kind of call. These scammers know full well what they're doing is illegal, and you'll find they either spoof Caller ID or call via modified disposable cell phones.
Filing 1088s (the FCC Complaint form) can help a little but if you've worked with FCC, you know they are one of the most abjectly hostile, anti-consumer government agencies around. You absolutely have to ride them, meaning call them, complain, perhaps even threaten to contact your congresscritter and request a reduction in funding to FCC (and follow it up with a letter to said congresscritter asking for just that.) FCC can be prodded into action but be aware you'd better have a cattle prod.
Try contacting your carrier directly after the couple calls or SMS spams. They won't do a thing: most if any have no proactive abuse policy in place whatsoever, and if you get an honest rep, they'll tell you that outright rather than patronize you. The reason to contact them is that by the time you receive your third or fourth call or SMS spam, you can mention in the comments/info box of your FCC complaints that you've tried to enlist your carrier's help, but that your carrier is making no effort to control abuse. In the case of VZW, you'll probably start getting calls and letters from management in Connecticut. THOSE folks will help. They'll tell you to contact them each and every time you get an unwanted marketing call or SMS spam and they can get the source identified and nuked fairly quickly so that few other people will be victimized. In effect, for those who've worked with email abuse, they are functionally similar to an email@example.com address, once you've reached this point.
Keep in mind, though, that this won't totally eliminate unwanted calls or SMS since, again, there are no pro-active or rapid-response mechanisms available to consumers.
PS: Never reply to an SMS text or contact an "opt-out" number, website, etc. Replying STOP or otherwise opting out only verifies to the spammer that they've hit a live cellphone and that you've taken the time to read their text or listen to their message. Unfortunately, reps at phone carriers often advise people to opt-out, and that's when the real flood starts.
If you believe people should work till they die to pay for a government worker to retire at 50, you're a Democrat. Otherwise, you're a Republican. All other differences between the parties are trivial.