Equipment unit · VIN-decoded · NHTSA vPIC

2025 Silverback Trailer SILVERBACK

4S9GF4025SH623789 · Trailer · TRAILER
Carriers run under2
1 mo
Inspections3
all-time
OOS inspections2
of 3
First seenJun 3, 2026
TX
Last seenJul 17, 2026
TX
Inspected under 2 different carriers in 1 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
4S9GF4025SH623789
Make
Silverback Trailer
Model
SILVERBACK
Model year
2025
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
4S9

Deterministic · VIN positions 1–3.

Source · 49 CFR Part 565 ↗
Vehicle descriptor section
GF402

Deterministic · VIN positions 4–8.

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

Deterministic · position 9; calculated value 5.

Source · 49 CFR Part 565 ↗
Model year candidates
1995 or 2025

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

Source · 49 CFR Part 565 ↗
North American serial sequence
623789

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 · Jun 3, 2026 – Jul 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 17, 2026TXII · Walk-around3—THOMAS 7 TRUCKING LLC 4421981046926N/TX
Jun 3, 2026TXI · Full9OOSFROST LOGISTICS INC 4221981046926N/TX
Jun 3, 2026TXI · Full9OOSFROST LOGISTICS INC 4221981046926N/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THOMAS 7 TRUCKING LLC4421981Jul 17, 2026Jul 17, 20261TX
FROST LOGISTICS INC4221981Jun 3, 2026Jun 3, 20262IN
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.
046926NTX2THOMAS 7 TRUCKING LLCJul 17, 2026 → Jul 17, 20261
046926NTX—FROST LOGISTICS INCJun 3, 2026 → Jun 3, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026