Who called from 3033300916

this number calls me and remains silent.  The caller or the number
is unknown to me

I do not know who this is.  The phone was dead the first time I tried to answer.  After that I have not answered a call from this number.  I depend on my phone and do not appreciate callers that are not lagite.
There should be a way to stop these unwanted calls.

called and left no message

No response.

I know not who but about one or twice a month I get these calls. Wish they would find some one else to harass as I am sick and tired of it.