The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is WHN. This MIC (WHN) stands for the company name Indicator Boat Mfg which is currently Out of Business. This boat manufacturer code has other company names (WHN sometimes goes by these name(s) if applicable: , , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Indicator Boat Mfg) is owned by and is located at 3600 Riverside Dr in Crystal Lake state of Il. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Indicator Boat Mfg has started making boats, yachts or other watercraft as of 3/14/1978 and went out of business on (12/28/1983) in the following country: USA.
More details at the US Coast Guard.