Have received 4 calls this week from this number. I do not answer because I do not recognize this number as someone I know. I let my answering machine catch the call. They never leave message.
Third call within 2 days. Did not answer; no message left. I looked this number up on whitepages.com, and it's reported as an invalid phone number. Obviously some kind of scam.
Robocall survey asking for your favorite football team. Didn't stay on the line long enough to find out what they are really about. Getting one call a day from this number until I blocked it.