Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYDP9X8MJ459281 · Truck-Tractor · TRUCK
Carriers run under2
30 mo
Inspections15
all-time
OOS inspections1
of 15
First seenJan 11, 2024
NM
Last seenJul 30, 2026
US
Inspected under 2 different carriers in 30 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
1XKYDP9X8MJ459281
Make
Kenworth
Model
T680
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 18, 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YDP9X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
459281

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.

Make
KENWORTH

Prefix basis · 26,022 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 26,022 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

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
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T680

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jan 11, 2024 – Jul 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 30, 2026USIII · Driver-only0AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/MX
Jul 29, 2026USIII · Driver-only1AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/MX
Jul 20, 2026TXIII · Driver-only0AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/MX
Jul 6, 2026USI · Full2AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/MX
Jun 18, 2026TXII · Walk-around0AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/DF
May 28, 2026TXI · Full8AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/CI
May 21, 2026USI · Full3OOSAMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV 389808630ES8X/MX
Oct 14, 2025NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Sep 9, 2025NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Aug 11, 2025NMII · Walk-around0STELLAR SIX LLC 3118166R505667/TX
Jul 10, 2025NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Jun 5, 2025NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Dec 12, 2024NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Jun 26, 2024NMI · Full0STELLAR SIX LLC 3118166R505667/TX
Jan 11, 2024NMI · Full0STELLAR SIX LLC 3118166R505667/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CV3898086May 21, 2026Jul 30, 20267CI
STELLAR SIX LLC3118166Jan 11, 2024Oct 14, 20258TX
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.
30ES8XMX1AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CVMay 21, 2026Jul 30, 20265
30ES8XDF1AMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CVJun 18, 2026Jun 18, 20261
30ES8XCIAMBAS FRONTERAS SERVICIOS DE TRANSPORTE S DE RL DE CVMay 28, 2026May 28, 20261
R505667TXSTELLAR SIX LLCJan 11, 2024Oct 14, 20258
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026