Simply put...I don't answer calls if I don't know the person behind the number they originate from. Amazing how quickly scammers get hold of NEW numbers..I have had my new cell less than a week and only ones who have the number are my sister and her 2 sons.
Received a call from this number and tried to call back and got an automated voice. Area code is 314 which is saint Louis, 666 is the prefix. My dad's work number is 314-666-xxxx but this is obviously not a phone from his work
I also received a call from this number, but I was turning in job applications and talking with a lady inside Subway, so I didn't answer because it didn't seem important, and then I was worrying about it being from another place I had turned in an application to, thanks for noting your experience with them, because it made me feel better when I read what they called about.