Equipment unit · VIN-decoded · NHTSA vPIC

2021 Mack Anthem

1M1AN4GY6MM021572 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections5
all-time
OOS inspections0
of 5
First seenAug 25, 2023
CO
Last seenJun 26, 2026
GA
Inspected under 2 different carriers in 34 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
1M1AN4GY6MM021572
Make
Mack
Model
Anthem
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
Jul 1, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 25, 2023 – Jun 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 26, 2026GAIII · Driver-only1—MICRO SYSTEMS INC 4437127USB288/FL
Oct 14, 2024KSII · Walk-around3—CHIEF PETROLEUM COMPANY 135370BEBR75/CO
Aug 12, 2024COII · Walk-around2—CHIEF PETROLEUM COMPANY 135370BEBR75/CO
Jun 16, 2024COI · Full1—CHIEF PETROLEUM COMPANY 135370BEBR75/CO
Aug 25, 2023COIII · Driver-only0—CHIEF PETROLEUM COMPANY 135370BEBR75/CO
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MICRO SYSTEMS INC4437127Jun 26, 2026Jun 26, 20261FL
CHIEF PETROLEUM COMPANY135370Aug 25, 2023Oct 14, 20244CO
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.
USB288FL1MICRO SYSTEMS INCJun 26, 2026 → Jun 26, 20261
BEBR75CO—CHIEF PETROLEUM COMPANYAug 25, 2023 → Oct 14, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 1, 2026