I am!? ii have no idea who it is.

I am getting the same thing.  I got 13 calls yesterday, a SUNDAY! I pick it up and there is a couple seconds of nothing then my phone hangs up.  I call it back and same thing, it picks up then immediately hangs up.

I have been getting these calls too, from this same number!

5 times...I call it back and it rings 2x and then the line goes silent and hangs up.

same here