I noticed whenever I picked up this number (no one on the other end) I get a ton of scam calls from other numbers within a few hours of my answering this number. I believe they are scouting for active numbers.
Automated female voice: "We are calling about renewing the warranty on your car. We have sent you several notices about renewing your warranty. Would you like to renew now?"
Me: "No."
Automated female voice: "Does your car have less than 150,000 miles?"
Me: "No."
*click*