This is indeed a valid number for what is commonly referred to as the TTB. We are in the process of starting a micro-distillery and are dealing with them on a regular basis. Perhaps 800Notes should come up with another "Call Type" in their drop-down menu.
The posts in question are over three years old and may have been connected to something outside of what you are speaking of. Besides there is also the possibility that caller id spoofing was used in case of the previous comments.