Also, for those dealing with these harassment issues, if you never give out your actual cell # and use or give out a "proxy" or "middleman" service number like Google Voice (or others, perhaps Ring.to), that can help too. Because you can't send to Google Voice for example, at least with AutoSMS service (related to
textr.us and Anonytext), because it's not available as a "carrier" to send through. They can only then call you, etc. And Google Voice has some blocking options to block senders of text and callers.