Received a call, but no message left. It might be a recruiter?

Received a call from this number. The caller said they had an estimate for drought resistant plants for my front lawn. I hadn't requested an estimate and said this. The caller said, "then why did you ask me to call back?" I said I thought they had the wrong number. Then the caller asked if maybe I had requested an estimate for a number of unrelated services that they listed. Then the caller asked, "Is this (my full name)?" Then the caller asked, "how are things in Mountain View?" Then said, "thanks sweetie" and made a kissing sound. Very creepy.

Received a call from this number, called it back and it was listed as disconnected?!  Must be a housewife.

Answered a call from this number, they said nothing and hung up.

Answered a call from this number, they said nothing and hung up.