Equipment unit · VIN-decoded · NHTSA vPIC

2021 Mississippi Tank Company

1M9AT9B28MV355437 · Trailer · TRAILER
Carriers run under1
18 mo
Inspections4
all-time
OOS inspections0
of 4
First seenFeb 2, 2024
MO
Last seenAug 26, 2025
MO
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M9AT9B28MV355437
Make
Mississippi Tank Company
Model
Mississippi Tank Company
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 6, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1M9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AT9B2

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1991 or 2021

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
355437

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
MISSISSIPPI TANK COMPANY

Prefix basis · 106 decoded VINs at 100.0% prefix purity.

Model
Mississippi Tank Company

Prefix basis · 106 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
MISSISSIPPI TANK COMPANY

Observed directly for this VIN via NHTSA vPIC.

Observed model
Mississippi Tank Company

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 2, 2024 – Aug 26, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 26, 2025MOV · Vehicle-only0HUELLINGHOFF BROS INC 19856834L9GY/MO
Jun 10, 2025KYI · Full0HUELLINGHOFF BROS INC 19856834L09546P/MO
Mar 28, 2025ILIII · Driver-only0HUELLINGHOFF BROS INC 19856834L9GY/MO
Feb 2, 2024MOI · Full0HUELLINGHOFF BROS INC 19856834L9GY/MO
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HUELLINGHOFF BROS INC198568Feb 2, 2024Aug 26, 20254MO
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
34L9GYMOHUELLINGHOFF BROS INCFeb 2, 2024Aug 26, 20253
34L09546PMOHUELLINGHOFF BROS INCJun 10, 2025Jun 10, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026