This phone number apparently belongs to a company doing business under the following names:
- Hilton Vacations Club
- Hilton Vacation marketing company
- Hilton Vacation Marketing
- Hilton Vacation Company
- Hilton Grand Vacations Company
- Hilton Garden Vacations
These names are similar (and, in one case, identical) to those of several companies owned by the Hilton Hotels Corporation (HHC), so it looks as if the calls may have been authorized by HHC.