Carrier profile · USDOT 379477 · MC-226470 · Updated Jun 13, 2026

RALPH L KIRBY III

DBA KIRBY TRUCKING

0 power unitsWINSLOW, AZ50/100
CARRIER INACTIVEMC-226470 INACTIVE
Verified linksFMCSA SAFER
Observed fleet · trailing 24 mo daily
0Power units
Self-reported · MCS-150
Trailers seen
None observed · 24 mo
Avg age (yr)
Not yet decoded

Load decision · FMCSA snapshot · Jun 13, 2026

Limited record

Not enough federal record to assess. Verify authority and insurance directly.

Established 37 yearsUSDOT registration inactive
USDOT registration36 yr registered
No active authority
Insurance (BIPD) unknown
No filing on record
Vehicle OOS · 24-mo
No inspections · 24 mo
Crashes · fatal
No crash record
Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet typeIdentity

Unclassified

Fleet signal still resolving

Fleet age vs peersDecoding

Not yet decoded

Identity stabilityStable

36 yr unchanged

Same registration since 1990 — no chameleon / reincarnation signal.

Loading full carrier record…
Verification summaryAuthority, insurance, safety and identity facts for RALPH L KIRBY III.

RALPH L KIRBY III (USDOT 379477) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Jun 13, 2026.

The carrier has no active for-hire operating authority per FMCSA L&I as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 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 Jun 13, 2026.

It reports 0 power units in its most recent MCS-150 filing available in the FMCSA record refreshed Jun 13, 2026.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 13, 2026.

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Frequently asked

What is RALPH L KIRBY III's USDOT number?

RALPH L KIRBY III's USDOT number is 379477, and its motor carrier number is MC-226470.

Is RALPH L KIRBY III authorized to operate?

As of Jun 13, 2026, RALPH L KIRBY III is inactive in the FMCSA register with common, contract, broker operating authority on file.

How big is RALPH L KIRBY III's fleet?

RALPH L KIRBY III operates 0 power units per its most recent MCS-150 filing.

Where is RALPH L KIRBY III based?

RALPH L KIRBY III is based in WINSLOW, AZ.

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