Who called from 5035630168

As soon as you thell them you're on the Do Not Call Registry, they hang up. If you call the originating number displayed on caller ID...you get a cute fake Do Not Call Registry message.
Pure telephone SPAM.

This call came on my secure line...it has never been given out to anyone...I want this to stop but do not want them to have my number...afraid that *67 will not work anymore to keep number secure

Why don't they leave a message

Did not answer, left no V/M.  Did not return the phone call.

just got a call on my cell, just sent it to vm, no vm left.  recognize the number from previous unsolicited calls.