I tried calling the number back. It automatically hangs up your call. I tried a number of times to determine what the company name is. I blocked the call!
They called again today. Was an automated voice, saying this number was specially selected because I qualified for something, having met standard criteria, but wasn't clear what it was about. The "something" I qualified for was in the double-digit thousands, but I wasn't sure if it was credit for something, or for some account.... Scam, of course. I hung up after they said, "if you're interested in further information, press 1".