Who called from 4848915666

I received a call from this number today, but when I  inquired regarding the reason for the call, the female caller hung up without answering my question.

Asked for me by name, then hung up. When I called back the number, a voice said "hello" and hung up.

called and left no message. I then called it back and female voice sad hello then hung up.

they've been calling me all week ,i haven't been able to answer cause i was busy when they called but now i know its an unwanted call anyway

They call everyday regarding the renewal of an automobile warranty.  If you tell them to stop calling you, they call more.  They do not stop.  I am going to try and find out who they are representing next time they call.  I usually don't answer or they hang up when I do answer and start asking questions.