ULTRALIGHT DINGHIES HIN Decoder
Hull Identification Numbers beginning with ULD were assigned by the US Coast Guard to ULTRALIGHT DINGHIES of GILFORD, NH. The company is recorded as out of business since 1998 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
ULD
Location
GILFORD, NH
In business
since 1989
Status
Out of business (1998)
ULTRALIGHT DINGHIES hulls (1989–1998) 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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ULTRALIGHT DINGHIES HIN FAQ
What does a ULTRALIGHT DINGHIES HIN look like?
It starts with the three characters "ULD" — the Manufacturer Identification Code the US Coast Guard assigned to ULTRALIGHT DINGHIES — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ULTRALIGHT DINGHIES hulls (1989–1998) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ULTRALIGHT DINGHIES still in business?
USCG records list ULTRALIGHT DINGHIES as out of business since 1998. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a ULTRALIGHT DINGHIES HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ULTRALIGHT DINGHIES hulls (1989–1998) 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 NH
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ULTRALIGHT DINGHIES HIN Decoder," carwhere.com/hin-decoder/uld, last verified 2026-06-12.