CAST AND BLAST BOATS LLC HIN Decoder
Hull Identification Numbers beginning with OSW were assigned by the US Coast Guard to CAST AND BLAST BOATS LLC of CHARLESTON, SC. 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
OSW
Location
CHARLESTON, SC
In business
since 2013
Status
Listed active in USCG records
CAST AND BLAST BOATS LLC hulls (2013–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
The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).
CAST AND BLAST BOATS LLC HIN FAQ
What does a CAST AND BLAST BOATS LLC HIN look like?
It starts with the three characters "OSW" — the Manufacturer Identification Code the US Coast Guard assigned to CAST AND BLAST BOATS LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. CAST AND BLAST BOATS LLC hulls (2013–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is CAST AND BLAST BOATS LLC still in business?
USCG records list CAST AND BLAST BOATS LLC of CHARLESTON, SC in the MIC database (registered 2013).
How do I decode the year on a CAST AND BLAST BOATS LLC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. CAST AND BLAST BOATS LLC hulls (2013–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 SC
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "CAST AND BLAST BOATS LLC HIN Decoder," carwhere.com/hin-decoder/osw, last verified 2026-06-12.