Who called from 4434516937

Called and hung up when we answered the phone.

Called this morning. No one on the line. Don't know this number.

Same thing --- no one there when i answered the  phone, i called the numbber back  and it  would not   hitch into the  ring  stage...?

Same tried several times would not connect.

This phone continues to call almost every day, doesn't respond or answer back.