Equipment unit · VIN-decoded · NHTSA vPIC

2022

3ELD4MS52N6003684 · TRAILER
Carriers run under5
20 mo
Inspections9
all-time
OOS inspections0
of 9
First seenJul 13, 2023
TX
Last seenMar 6, 2025
CA
Inspected under 5 different carriers in 20 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
3ELD4MS52N6003684
Make
Not decoded
Model
Not decoded
Model year
2022
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 10, 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
3EL

Deterministic · VIN positions 1–3.

Vehicle descriptor section
D4MS5

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

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
003684

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
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Jul 13, 2023 – Mar 6, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 6, 2025CAII · Walk-around0SOUTHBAY TRANSPORT INC 183797367UN7P/MX
Jan 24, 2025USII · Walk-around0SOUTHBAY TRANSPORT INC 183797367UN7P/MX
Jan 17, 2025USI · Full0SOUTHBAY TRANSPORT INC 183797367UN7P/MX
Mar 26, 2024CAII · Walk-around1KATHYA VILLANUEVA MELCHOR 417261467UN7P/MX
Feb 16, 2024TXIII · Driver-only6FERROSRB SA DE CV 402741967UN7P/MX
Feb 2, 2024TXI · Full5ALBERTO VAZQUEZ PEREZ 326016967UN7P/MX
Jan 17, 2024TXI · Full7ALBERTO VAZQUEZ PEREZ 326016967UN7P/MX
Jan 17, 2024TXII · Walk-around9ALBERTO VAZQUEZ PEREZ 326016967UN7P/MX
Jul 13, 2023TXIII · Driver-only5NICOLAS FLORES BENAVIDES 289401767UN7P/MX
03

Carriers this unit has run under

5 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHBAY TRANSPORT INC1837973Jan 17, 2025Mar 6, 20253CA
KATHYA VILLANUEVA MELCHOR4172614Mar 26, 2024Mar 26, 20241CA
FERROSRB SA DE CV4027419Feb 16, 2024Feb 16, 20241TA
ALBERTO VAZQUEZ PEREZ3260169Jan 17, 2024Feb 2, 20243TA
NICOLAS FLORES BENAVIDES2894017Jul 13, 2023Jul 13, 20231TA
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.
67UN7PMXSOUTHBAY TRANSPORT INCJan 17, 2025Mar 6, 20253
67UN7PMXKATHYA VILLANUEVA MELCHORMar 26, 2024Mar 26, 20241
67UN7PMXFERROSRB SA DE CVFeb 16, 2024Feb 16, 20241
67UN7PMXALBERTO VAZQUEZ PEREZJan 17, 2024Feb 2, 20243
67UN7PMXNICOLAS FLORES BENAVIDESJul 13, 2023Jul 13, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026