Who called from 8471475563

Just got a call from them, left no message. I'm sure another scam

I received a call from that number too, but whoever called hung up before saying a word....

Same as above. Didn't say a word. Took me a while to answer so thought they may have hung up before I got to phone but there was no message and I wasn't getting dial tone. Caller ID identified it as "name not known".

Got a call from this no. caller id said name not known. Didn't leave a message.

Answered phone after 2 rings.  Caller ID said NAME NOT FOUND.  Dead silence. I said hello a couple of times. Nothing.