ALVIN WELDING SERVICE HIN Decoder
Hull Identification Numbers beginning with AWO were assigned by the US Coast Guard to ALVIN WELDING SERVICE of FRANKLIN, LA. The company is recorded as out of business since 1983 — 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
AWO
Location
FRANKLIN, LA
In business
since 1981
Status
Out of business (1983)
ALVIN WELDING SERVICE hulls (1981–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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ALVIN WELDING SERVICE HIN FAQ
What does a ALVIN WELDING SERVICE HIN look like?
It starts with the three characters "AWO" — the Manufacturer Identification Code the US Coast Guard assigned to ALVIN WELDING SERVICE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ALVIN WELDING SERVICE hulls (1981–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is ALVIN WELDING SERVICE still in business?
USCG records list ALVIN WELDING SERVICE as out of business since 1983. 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 ALVIN WELDING SERVICE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ALVIN WELDING SERVICE hulls (1981–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in LA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ALVIN WELDING SERVICE HIN Decoder," carwhere.com/hin-decoder/awo, last verified 2026-06-12.