DBA MUDDY BOTTOM BOATS LLC HIN Decoder — MIC DNN
Hull Identification Numbers beginning with DNN were assigned by the US Coast Guard to DBA MUDDY BOTTOM BOATS LLC of FLORENCE, 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
DNN
Location
FLORENCE, SC
In business
since 2011
Status
Listed active in USCG records
Parent company
D & N METAL WORKS LLC
DBA MUDDY BOTTOM BOATS LLC 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.
How a DBA MUDDY BOTTOM BOATS LLC HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example DNN45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | DNN | Identifies DBA MUDDY BOTTOM BOATS LLC, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | DBA MUDDY BOTTOM BOATS LLC's own production number for the specific hull (the letters I, O, Q are never used). |
| 9 | Certification month | D | Month built — A=January … L=December (D = April). |
| 10 | Certification year | 4 | Last digit of the certification year. |
| 11–12 | Model year | 24 | The boat’s model year. |
Free · no account · the HIN is on the transom, upper starboard (right) corner
Buying this DBA MUDDY BOTTOM BOATS LLC? Check it before you pay.
Decoding the HIN confirms the year and serial, but not the safety record. The $9.99 Boat Report adds the full CPSC marine-recall check, a HIN consistency check, a verify-before-you-buy checklist, and the USCG builder record for this hull — one downloadable report, one-time, no subscription. See what's included
DBA MUDDY BOTTOM BOATS LLC HIN FAQ
What does a DBA MUDDY BOTTOM BOATS LLC HIN look like?
It starts with the three characters "DNN" — the Manufacturer Identification Code the US Coast Guard assigned to DBA MUDDY BOTTOM BOATS LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DBA MUDDY BOTTOM BOATS LLC 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 DBA MUDDY BOTTOM BOATS LLC still in business?
USCG records list DBA MUDDY BOTTOM BOATS LLC of FLORENCE, SC in the MIC database (registered 2011), associated with D & N METAL WORKS LLC.
How do I decode the year on a DBA MUDDY BOTTOM 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. DBA MUDDY BOTTOM BOATS LLC 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.
Where is the HIN on a DBA MUDDY BOTTOM BOATS LLC boat?
On the outside upper-starboard (right) corner of the transom, within two inches of the top — required by 33 CFR 181.29. Since August 1984 an identical duplicate HIN is also molded into an unexposed interior location as an anti-theft measure. Both should match the title, registration, and insurance card exactly.
Is the "DNN" MIC the same as a DBA MUDDY BOTTOM BOATS LLC serial number?
No. "DNN" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies DBA MUDDY BOTTOM BOATS LLC. The hull serial number is characters 4–8: DBA MUDDY BOTTOM BOATS LLC's own production number for that specific boat (the letters I, O, and Q are never used). The full 12-character HIN combines the MIC, the serial, and the date code.
Can a DBA MUDDY BOTTOM BOATS LLC HIN tell me the exact model?
Not on its own. A HIN encodes the builder, hull serial, certification month/year, and model year — not the model name or length. Match the decoded year and serial against DBA MUDDY BOTTOM BOATS LLC records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in SC
Sources: verified against the USCG Manufacturer Identification Code database (refreshed monthly) · HIN format per 33 CFR Part 181, Subpart C. Reviewed by Sam Reynolds, Lead Researcher, CarWhere. Cite this page: CarWhere, "DBA MUDDY BOTTOM BOATS LLC HIN Decoder," carwhere.com/hin-decoder/dnn, last verified 2026-06-15.