Got a call from same number, but caller ID had:v71915250500169 -- Never seen anything like that before on caller ID.
I blocked my own number and called the phone number back. Ring had funny sound, then recorded message said: sorry we are unable to process your call...please unblock your number to have your number removed from our call list. WHAT A SCAM!
Same exoerience but my caller ID read "Winner." I think they were referring to me, not to themselves. And I did win, by not calling back and filing a complaint with the "Do Not Call" registry. I hope this is effective.