Calls 4-5 times a day on my cell phone.  I called the # back and it gave me the option to enter a 1 if I no longer wanted to be contacted by them.  I did so.  Told me it would take 72 hours to take effect.  We'll see.

I received 2 calls today.

FUNNY THING IS WHEN I CALL THE NUMBER BACK, ALL I GET IS A BUSY SIGNAL

Like one of the other posters, I get calls from tons of different bogus numbers on my cell.  Whoever these dirtbags are, they seem to use one number for a week, then switch to another.  I've reported most of them, but obviously they've figured out that if they just keep changing numbers the FCC can't catch up with them.  I have my service from Verizon and use their Do Not Disturb app, which hangs up on them.  Love it!

Thanks for the information.  My phone sits on my desk, I press the answer button and go about my business.  It waste their time trying to figure out why no one is talking to them.  They hang up about 15 seconds later.