Equipment unit · VIN-decoded · NHTSA vPIC

2022 Dragon Esp

1UNST4224NL153961 · Trailer · TRAILER
Carriers run under2
13 mo
Inspections3
all-time
OOS inspections2
of 3
First seenJan 1, 2025
TX
Last seenFeb 11, 2026
TX
Inspected under 2 different carriers in 13 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
1UNST4224NL153961
Make
Dragon Esp
Model
Dragon ESP
Model year
2022
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.

Vehicle descriptor section
ST422

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
153961

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.

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
2022

Observed directly for this VIN via NHTSA vPIC.

Observed make
DRAGON ESP

Observed directly for this VIN via NHTSA vPIC.

Observed model
Dragon ESP

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

  • 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 · Jan 1, 2025 – Feb 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 11, 2026TXII · Walk-around5OOSSTATE LINE VACUUM SERVICES LLC 1569645DL9286/OK
Mar 31, 2025LAI · Full5OOSSTALLION INFRASTRUCTURE SERVICES LTD 1184736DL9286/OK
Jan 1, 2025TXII · Walk-around4STALLION INFRASTRUCTURE SERVICES LTD 1184736DL9286/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STATE LINE VACUUM SERVICES LLC1569645Feb 11, 2026Feb 11, 20261LA
STALLION INFRASTRUCTURE SERVICES LTD1184736Jan 1, 2025Mar 31, 20252TX
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.
DL9286OKSTATE LINE VACUUM SERVICES LLCFeb 11, 2026Feb 11, 20261
DL9286OKSTALLION INFRASTRUCTURE SERVICES LTDJan 1, 2025Mar 31, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026