Some energy company. Informed them that they are on speaker phone and have audible witnesses to them calling. I directly asked them to never call again.
"only" 5 calls this month so far from this # - guess I'm lucky - Ha... Have put on my list for FTC to report.
btw - I believe Verizon only allows you to block up to 5 or 6 numbers - that lasts for 90 days, then have to start over again.