Fleet typeIdentity
Owner-operator
0 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 489464 · MC-534177 · Updated Aug 20, 2026
JB Leasing of Flagstaff LLC
DBA B4 TRANSPORT CO
0 power unitsFLAGSTAFF, AZ50/100
CARRIER INACTIVEMC-534177 INACTIVERATED SATISFACTORYHAZMAT
Observed fleet · trailing 24 mo daily
0Power units
Self-reported · MCS-150
—Trailers seen
None observed · 24 mo
—Avg age (yr)
Not yet decoded
Click to see how we scored it
Load decision · FMCSA snapshot · Aug 20, 2026
Limited record
Not enough federal record to assess. Verify authority and insurance directly.
Watch · 3
USDOT registration inactiveThe USDOT record is flagged inactive — the carrier may not be authorized to operate.No active operating authorityNo active common, contract, or broker authority is on file for a for-hire carrier.MCS-150 census data outdatedThe biennial MCS-150 update is 5.3 years old; fleet/mileage figures may be unreliable.
In good standing · 1
USDOT registration3434 yr registered
No active authorityInsurance (BIPD)— unknown
No filing on recordVehicle OOS · 24-mo—
No inspections · 24 moCrashes · fatal00
No activity in windowVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersDecoding
—
Not yet decoded
Identity stabilityStable
34 yr unchanged
Same registration since 1992 — no chameleon / reincarnation signal.
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Verification summary
JB LEASING OF FLAGSTAFF LLC (USDOT 489464) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Aug 20, 2026.
The carrier has no active for-hire operating authority per FMCSA L&I as of Aug 20, 2026.
It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Aug 20, 2026.
The carrier received 0 roadside inspections in the last 24 months — 0 vehicle-level and 0 driver-level, according to FMCSA roadside-inspection data refreshed Aug 20, 2026.
The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Aug 20, 2026.
It reports 0 power units and 4 drivers in its most recent MCS-150 filing dated Apr 19, 2021.
It has an FMCSA safety rating of Satisfactory assigned Nov 15, 2005 in the federal record refreshed Aug 20, 2026.
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Frequently asked
What is JB LEASING OF FLAGSTAFF LLC's USDOT number?
JB LEASING OF FLAGSTAFF LLC's USDOT number is 489464, and its motor carrier number is MC-534177.
Is JB LEASING OF FLAGSTAFF LLC authorized to operate?
As of Aug 20, 2026, JB LEASING OF FLAGSTAFF LLC is inactive in the FMCSA register with common, contract, broker operating authority on file.
How big is JB LEASING OF FLAGSTAFF LLC's fleet?
JB LEASING OF FLAGSTAFF LLC operates 0 power units and 4 drivers per its most recent MCS-150 filing.
Where is JB LEASING OF FLAGSTAFF LLC based?
JB LEASING OF FLAGSTAFF LLC is based in FLAGSTAFF, AZ.
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