This needs to be reported to the Consumer Protection Agency in your state, and if there is no reply to the FBI.
All my numbers are on the "no call list" but in the last year, give or take, it seems that it matters less and less. Many use "unknown number" when they call. I would just "pick up/hang up" but that is also the caller ID when my daughter calls from Germany. So I pick up/listen a few seconds/hang up. Over the last several years I have reported many companies that ignore the "no call" but I finally realized that it wasn't doing any good... HOWEVER... I did get a response from the FL Attornry General's office the last time I reported a FL number. At least they seem to care in FL.
I used to copy the message details and send them to
abuse@everyIPSlisted in the email and to
spam@uce.gov... sometimes I still do, it isn't too much trouble. I have gotten responses from ISPs.
J