Equipment unit · VIN-decoded · NHTSA vPIC

2021 Carry-On Trailer

4YMBU1623MR004909 · Trailer · TRAILER
Carriers run under1
13 mo
Inspections3
all-time
OOS inspections1
of 3
First seenDec 22, 2023
CA
Last seenJan 6, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4YMBU1623MR004909
Make
Carry-On Trailer
Model
Carry-On Trailer
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
4YM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BU162

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1991 or 2021

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

North American serial sequence
004909

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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
CARRY-ON TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Carry-On Trailer

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 · Dec 22, 2023 – Jan 6, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 6, 2025CAI · Full1QUALITY TELECOM CONSULTANTS INC 18970714UA8721/CA
Aug 16, 2024CAI · Full2OOSQUALITY TELECOM CONSULTANTS INC 18970714UA8721/CA
Dec 22, 2023CAI · Full0QUALITY TELECOM CONSULTANTS INC 18970714UA8721/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
QUALITY TELECOM CONSULTANTS INC1897071Dec 22, 2023Jan 6, 20253CA
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.
4UA8721CAQUALITY TELECOM CONSULTANTS INCDec 22, 2023Jan 6, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026