I also received a phone call from this number today, but no message was left. I phoned them back 3x's only to receive a busy signal. I suspect the call came from a telemarketer.
Call came in, didn't answer but found entry here about it. Added to auto-reject. PS: 3 hrs after getting an 'Unavailable' / no number call (didn't answer that one either). Spam city now on getting phone calls.
It's from VIP Travel, Inc. They're real number is 855-544-5321. They tried to sell me travel packages, because of my recent stay at the Hilton. I stayed at a Hilton years ago. I had an argument with the guy on the phone about being on the Do Not Call list and to remove me. He claims I can't remove because they don't have a list. I called bull and told him to stop calling. He tried calling back 5 times in a row with the 855-544-5321 number and I blocked that number too.
I have two lines in my house, one digit apart. When I get the same number calling both lines and leaving no message, I know it is a telemarketer. Number is now blocked on both lines.