SOUTHERN BOATWORKS INC HIN Decoder
Hull Identification Numbers beginning with SOI were assigned by the US Coast Guard to SOUTHERN BOATWORKS INC of FLOWOOD, MS. 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
SOI
Location
FLOWOOD, MS
In business
since 2011
Status
Listed active in USCG records
SOUTHERN BOATWORKS INC hulls (2011–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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SOUTHERN BOATWORKS INC HIN FAQ
What does a SOUTHERN BOATWORKS INC HIN look like?
It starts with the three characters "SOI" — the Manufacturer Identification Code the US Coast Guard assigned to SOUTHERN BOATWORKS INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SOUTHERN BOATWORKS INC hulls (2011–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is SOUTHERN BOATWORKS INC still in business?
USCG records list SOUTHERN BOATWORKS INC of FLOWOOD, MS in the MIC database (registered 2011).
How do I decode the year on a SOUTHERN BOATWORKS INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SOUTHERN BOATWORKS INC hulls (2011–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 MS
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "SOUTHERN BOATWORKS INC HIN Decoder," carwhere.com/hin-decoder/soi, last verified 2026-06-12.