I, too, have received numerous calls from this number, as many as one each day over the past 10 days. I do not answer but it comes up with the Orlando reading on my phone.
they've been calling me a lot too.. i just called them back and its a vacation hotline.. something like that. All you have to do is call them back and tell them to put you on their do not call list and it should be fine!
Called 2/4/2010. 407-722-3531 is Hilton Grand Vacations, a subsidiary of Hilton Worldwide, is based in Orlando and is an operator of timeshare resorts. http://www.hgvc.com Contact info:
Hilton Grand Vacations Company, LLC
6355 MetroWest Blvd., Suite 180
Orlando, Florida 32835
Phone: (407) 521-3100
Someone from this number called just now, but hung up when I answered. I called the number back, and a recording said, "Thank you for calling Hilton Grand Vacations Company. You have called us after our offices have closed."