Who called from 4253183219

I picked up and a lady asked if I could hear her. I hung up immediately.

Same thing just happened to me but I didn't answer. I had a voicemail of her asking, "Hello, can you hear me?" 5/5/17

answered and said hello several times to silence, then was asked 'can you hear me' i said 'yeah hello?' and then it went to a recording telling me i'd won somethign and I hung up. now i'm worried my 'yeah' may have been stolen for nefarious purposes...

Same thing but on my vm nothing was said, it was connected but no voice wtf?

Let unrecognized call go to voicemail.  Nothing on the messages.