This fax number came listed as a Private Caller.
The fax is a 'Business Finance' company not even stating their name- who is on a phishing expedition for my number which almost over 15 years ago belonged to a business. They are using a very old directory to drum up new business. They are most likely fraudulent.
The old business has been blindly approved for an over 45,000 line of credit.
So I am not even going to bother to Fax them back to unsubscribe, since I don't believe it will accomplish anything good.