Equipment unit · VIN-decoded · NHTSA vPIC

2024 Kalyn Siebert

5DDKV4529R1128221 · Trailer · TRAILER
Carriers run under2
17 mo
Inspections4
all-time
OOS inspections0
of 4
First seenNov 9, 2023
NC
Last seenApr 14, 2025
MD
Inspected under 2 different carriers in 17 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5DDKV4529R1128221
Make
Kalyn Siebert
Model
Kalyn Siebert
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 17, 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
5DD

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KV452

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1994 or 2024

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

North American serial sequence
128221

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
KALYN SIEBERT

Prefix basis · 65 decoded VINs at 100.0% prefix purity.

Model
Kalyn Siebert

Prefix basis · 65 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
2024

Observed directly for this VIN via NHTSA vPIC.

Observed make
KALYN SIEBERT

Observed directly for this VIN via NHTSA vPIC.

Observed model
Kalyn Siebert

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 · Nov 9, 2023 – Apr 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 14, 2025MDII · Walk-around0GRANT COUNTY MULCH INC 10252015098708/ME
Mar 5, 2024NCIII · Driver-only1INTERNATIONAL WOOD SERVICES INC 24515355260935/ME
Dec 14, 2023NCIII · Driver-only0INTERNATIONAL WOOD SERVICES INC 24515355260935/ME
Nov 9, 2023NCII · Walk-around0INTERNATIONAL WOOD SERVICES INC 24515355260935/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRANT COUNTY MULCH INC1025201Apr 14, 2025Apr 14, 20251WV
INTERNATIONAL WOOD SERVICES INC2451535Nov 9, 2023Mar 5, 20243NC
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.
5098708MEGRANT COUNTY MULCH INCApr 14, 2025Apr 14, 20251
5260935MEINTERNATIONAL WOOD SERVICES INCNov 9, 2023Mar 5, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026