Who called from 4243672521

Called and left no message.

Shows up as El Segundo, CA. Left no message but hung on long enough for my phone to make that annoying dial tone sound.

Assumed spam.  They called and left no message. I know no one from El Segundo, CA but I usually get mortgage refinancing offers from nearby.

Answered the call and it was a Hilton spam call - when I asked to be removed from the call list I was called a "[***]" and the caller hung up.  Return calls to the number received a busy signal.

Didn't reply when I answered. There was background noise. Based on other's experiences, I'm blocking the caller.