When I received a call from this number, I didn't answer.
I then called it back as *6713124420484.
The *67 turns off your caller ID, so they don't know who you are.
When the call was answered, the recording said "THE SURVEY YOU ARE WERE CALLED For HAS ENDED.".
Caller ID for 312-442-0484 shows CHICAGO, IL. I didn't answer and no message was left. They called my cellphone and what's strange about that is that 2 hours ago they called my wife's cellphone where she blocked this number. Her number and my number aren't even similar where they might have been robo-calling sequential numbers. In fact, our phone numbers are in 2 different area codes. So they're getting blocked here too and I have to try and find what we've used our phones for in common.