Didn't know the number. Didn't answer. Didn't leave a message.  May be legit.

Unknown number. Answered but only got dead air. Then was disconnected.

Received a call. Answered so I could interrogate them. They said nothing and then disconnected. Truthfully, they're probably calling to verify they have a valid number(s) so they sell them to more scammers.

just got a call from that number.  answered to see who it was.  nobody answered, just dead air.   hung up on them.

This number called made it thru my coma fowarding which usually does not pass on calls from telemarketers, No answer just dead air.  I think they are the company behind the reverse number look up that shows up a lot in the search.  This must stop.