I received a call from this number and answered with "hello" twice with no response from the caller within about five seconds, so I hung up. I then called the number, which is a local call for me, and got a telephone company recording that my call could not be completed as dialed. This usually means the number is spoofed by a scammer. I have now blocked the number.

Received a call from this number and answered with no response from the caller.

Received a call and it sounded like someone saying Black Friday sale like they were on another call and then i said hello and hung up. No call back so no one i know.

Called my mobile number, no voicemail left. Blocked.

I answered and said hello twice.  No answer.  So I hung up.  Likely spam