WINNINGHOFF BOATS INC HIN Decoder
Hull Identification Numbers beginning with WNF were assigned by the US Coast Guard to WINNINGHOFF BOATS INC of ROWLEY, MA. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
WNF
Location
ROWLEY, MA
In business
since 1989
Status
Listed active in USCG records
WINNINGHOFF BOATS INC hulls (1989–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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WINNINGHOFF BOATS INC HIN FAQ
What does a WINNINGHOFF BOATS INC HIN look like?
It starts with the three characters "WNF" — the Manufacturer Identification Code the US Coast Guard assigned to WINNINGHOFF BOATS INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. WINNINGHOFF BOATS INC hulls (1989–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is WINNINGHOFF BOATS INC still in business?
USCG records list WINNINGHOFF BOATS INC of ROWLEY, MA in the MIC database (registered 1989).
How do I decode the year on a WINNINGHOFF BOATS INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. WINNINGHOFF BOATS INC hulls (1989–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in MA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "WINNINGHOFF BOATS INC HIN Decoder," carwhere.com/hin-decoder/wnf, last verified 2026-06-12.