They call every week.  Sick of it.

called twice today, did not leave message

They call me regularly. I have never answered in the last at least 65 calls.
I don't know what are they achieving.

They called here about 12 times today.  Phone rings, Caller ID recognizes number, then they hang up.  This is a business and all numbers are listed on the DNC list.

It shows up as "Pest Control 6000" in my phone, ever day. I never answer, they never leaves a message. Have added them to the "crap spammers" group in YouMail that lets me ditch them with an outgoing recording that the number's been disconnected.