Fleet typeIdentity
Owner-operator
1 power unit. Brokers price each fleet type apart.
Carrier profile · USDOT 664951 · MC-304571 · Updated Aug 20, 2026
Mark J Souther
DBA M K S TRUCKING
1 power unitMESA, AZ50/100
CARRIER INACTIVEMC-304571 INACTIVEUNDELIVERABLE ADDRESS
Observed fleet · trailing 24 mo daily
1Power 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 · 5
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.No inspection history despite active fleetAn established carrier reporting 1 power units has no roadside inspections — a common shell/paper-carrier signal.Undeliverable physical addressFMCSA mail to this carrier's physical address was returned undeliverable — a common shell-carrier signal. Verify the address before tendering.MCS-150 census data outdatedThe biennial MCS-150 update is 23.5 years old; fleet/mileage figures may be unreliable.
In good standing · 1
USDOT registration2929 yr registered
No active authorityInsurance (BIPD)— unknown
No filing on recordVehicle OOS · 24-mo—
No inspections · 24 moCrashes · fatal—
No crash recordVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersDecoding
—
Not yet decoded
Identity stabilityStable
29 yr unchanged
Same registration since 1996 — no chameleon / reincarnation signal.
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Verification summary
MARK J SOUTHER (USDOT 664951) 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.
It reports 1 power unit and 1 driver in its most recent MCS-150 filing dated Feb 9, 2003.
It has no FMCSA-assigned safety rating in the federal record refreshed Aug 20, 2026.
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Frequently asked
What is MARK J SOUTHER's USDOT number?
MARK J SOUTHER's USDOT number is 664951, and its motor carrier number is MC-304571.
Is MARK J SOUTHER authorized to operate?
As of Aug 20, 2026, MARK J SOUTHER is inactive in the FMCSA register with common, contract, broker operating authority on file.
How big is MARK J SOUTHER's fleet?
MARK J SOUTHER operates 1 power unit and 1 driver per its most recent MCS-150 filing.
Where is MARK J SOUTHER based?
MARK J SOUTHER is based in MESA, AZ.
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