Like many above, got a call from this number saying they were a firefighter foundation.  When I asked where they got my number, they said the phone book.  When I instructed him that they called me on a cell phone, he kept on saying it came from a phone book.  I asked them not to call back.  About a minute later, got a call from 720-235-9630 from the same guy telling me that he had 8 people working the phones, and that they would be annoying me all day long.  Obviously a joke of an organization that should be investigated by the Secretary of State