Three calls per day for three days straight. Silence when answered and then disconnect.

we have been receiving calls, almost daily from this number. the calls usually come around 7 p.m.  when I answer, they listen for
a moment , and then hang up.  what is this ??

I received 6 calls from this number today.  I called it back and got an answering machine.  I left the message to stop the calls.  The last one which I received 5 minutes ago (9:05PM) I actually spoke with a person and told them to take this number off their list.

Your request is likely to bring the results you don't want. They'll call you if they know your number works, or at least pass it on so other pests can. Either block the number, or offer no answer at all if you're able.

Just redialed the number about 20 times and left a nasty message