Yesterday I set up a block on endless no-message calls I was receiving from 201-350-3263. Last night, I received a call that was successfully blocked by my device from that number. Today I received a call from 201-350-3264.
three calls in a row - first from 973-310-6856, second 908-274-2198, third this one. All three I called back on a different line and all had the same lady on voicemail saying "press 9 to be put on the do not call list". All three calls within 15 minutes!