Equipment unit · VIN-decoded · NHTSA vPIC

2021 Dragon Esp

1UNSD3426ML191002 · Trailer · TRAILER
Carriers run under3
4 mo
Inspections3
all-time
OOS inspections2
of 3
First seenOct 29, 2024
TX
Last seenFeb 10, 2025
TX
Inspected under 3 different carriers in 4 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
1UNSD3426ML191002
Make
Dragon Esp
Model
Dragon ESP
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 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
1UN

Deterministic · VIN positions 1–3.

Source · 49 CFR Part 565 ↗
Vehicle descriptor section
SD342

Deterministic · VIN positions 4–8.

Source · 49 CFR Part 565 ↗
Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Source · 49 CFR Part 565 ↗
Model year candidates
1991 or 2021

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

Source · 49 CFR Part 565 ↗
North American serial sequence
191002

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

Source · 49 CFR Part 565 ↗

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 · Oct 29, 2024 – Feb 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 10, 2025TXII · Walk-around9OOSMEMPHIS KNOX TRUCKING COMPANY LLC 3315160AX4450/OK
Feb 3, 2025TXII · Walk-around1OOSDOUBLE R DOZER LLC 3788883AX4450/OK
Oct 29, 2024TXI · Full2—RELIANT HAULERS LLC 3018739AX4450/OK
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MEMPHIS KNOX TRUCKING COMPANY LLC3315160Feb 10, 2025Feb 10, 20251TX
DOUBLE R DOZER LLC3788883Feb 3, 2025Feb 3, 20251TX
RELIANT HAULERS LLC3018739Oct 29, 2024Oct 29, 20241TX
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.
AX4450OK—MEMPHIS KNOX TRUCKING COMPANY LLCFeb 10, 2025 → Feb 10, 20251
AX4450OK—DOUBLE R DOZER LLCFeb 3, 2025 → Feb 3, 20251
AX4450OK—RELIANT HAULERS LLCOct 29, 2024 → Oct 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026