This is customer to customer forum. So I'm not sure how other customers can "fix it". Also in case you didn't realzie until mid Nov 2017 carriers were required BY LAW  to pass ALL calls through. So are you suggestion Verizon should have violated federal law? There are only a limited amount of things carriers can do even now. carrier can now block number they know aren't active so that will help but they can't block an active number. So if someone is spoofing your number I'm pretty sure you do not want Verizon or any carrier blocking that because no one would get your calls.