Equipment unit · VIN-decoded · NHTSA vPIC

4P51D2121N4000485

Not yet decoded
Carriers run under2
10 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 21, 2024
MD
Last seenJun 5, 2025
MD
Inspected under 2 different carriers in 10 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

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

World manufacturer identifier
4P5

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1D212

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1992 or 2022

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

North American serial sequence
000485

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 21, 2024 – Jun 5, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 5, 2025MDII · Walk-around2DMV CONTRACTING SERVICES LLC 43693755224221/ME
Oct 10, 2024MDII · Walk-around0ED'S TRANSPORT 32978145224221/ME
Aug 21, 2024MDII · Walk-around6ED'S TRANSPORT 32978145224221/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DMV CONTRACTING SERVICES LLC4369375Jun 5, 2025Jun 5, 20251MD
ED'S TRANSPORT3297814Aug 21, 2024Oct 10, 20242MD
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.
5224221MEDMV CONTRACTING SERVICES LLCJun 5, 2025Jun 5, 20251
5224221MEED'S TRANSPORTAug 21, 2024Oct 10, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC