Who called from 5619076003

No one there....

Harassing ne

I have an unlisted number and am on a do not call list.
I do not want these people calling me.

I answered the phone to this unknown called, and they said nothing. then they hung up. how do I stop this caller from calling my #?

This number has called me three times if it not local or I don't know the number I don't answer. .They just set on my voice mail breathing all three times. .