this number keeps calling every day. I have gotten as many as 10 calls in a single day from this number. They never leave a message. They finally left a message today and it was just a little background noise. It is very annoying. I have blocked the number but they just keep on calling.

No answer on other end of the line

Called no voice mail and hangs up when I call back

For the past few days I've been getting 10 to 15 calls a day from this number.  They leave no message and the few times I've answered there's nobody in the line.  Very annoying.

I have to!
I finally was able to pick up when they called again and asked me to put me on the "do not call" list.
I hope they listen. They're phone calls are a bit creepy.....