EXTREME MARINE INC HIN Decoder
Hull Identification Numbers beginning with EXT were assigned by the US Coast Guard to EXTREME MARINE INC of MIAMI, FL. The company is recorded as out of business since 2010 — 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
EXT
Location
MIAMI, FL
In business
since 2006
Status
Out of business (2010)
EXTREME MARINE INC hulls (2006–2010) 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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EXTREME MARINE INC HIN FAQ
What does a EXTREME MARINE INC HIN look like?
It starts with the three characters "EXT" — the Manufacturer Identification Code the US Coast Guard assigned to EXTREME MARINE INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. EXTREME MARINE INC hulls (2006–2010) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is EXTREME MARINE INC still in business?
USCG records list EXTREME MARINE INC as out of business since 2010. 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 EXTREME MARINE INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. EXTREME MARINE INC hulls (2006–2010) 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 FL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "EXTREME MARINE INC HIN Decoder," carwhere.com/hin-decoder/ext, last verified 2026-06-12.