MC SENTRY

MS & SONS CORP

USDOT 133751 · MC143871 what is the difference?

1605 SASSY LANE, HUMBOLDT, IA 50548

Registered 1974-06-01 · 40 power units · Interstate

MS & SONS CORP (USDOT 133751, MC143871) is an interstate motor carrier based in HUMBOLDT, IA, operating a fleet of 40 power units. FMCSA shows operating authority as active for Motor Carrier of Property (Except Household Goods), granted 1985-07-08. The insurance file carries a $1,000,000 BMC-91X filing from Great West Casualty Co, effective 2021-08-06. The authority and insurance files agree with each other as of the date this record was read. These figures are read from FMCSA Licensing & Insurance and SAFER on 2026-09-23; MC Sentry reports what is on file and does not rate or recommend carriers.

Operating authority

Motor Carrier of Property (Except Household Goods)Active GRANTED

Insurance on file

TypeCoverageInsurerPolicyStatus
BIPD liability$2,000,000Crum & Forster Specialty Insurance CompanySEO-109833Cancelled effective
BIPD liability$2,000,000Starstone Specialty Insurance CompanyAXS00516622P-04On file, effective
BIPD liability$1,000,000Great West Casualty CoMCP74021AOn file, effective

Federal minimum for general freight property carriers is $750,000 BIPD. What each filing code means. Cargo coverage is not shown here — why the federal record cannot tell you if your freight is covered.

Recent activity

BIPD/Excess policy SEO-109833 cancelled by insurer (CRUM & FORSTER SPECIALTY INSURANCE COMPANY)
BIPD/Primary policy GWP99188A cancelled by insurer (GREAT WEST CASUALTY CO.)
BIPD/Excess policy CCP04584A cancelled by insurer (GREAT WEST CASUALTY CO.)
CARGO policy CPP0007415 cancelled by insurer (FARM BUREAU MUTUAL INSURANCE CO.)
BIPD/Primary policy CA 8232963 cancelled by insurer (CLASSIC INSURANCE CO)

1 earlier filing change on record, back to 1985-07-08. Totals are summarised under Filing history analysis.

Registration on file

Entity statusActive
OperationInterstate
ClassificationAUTHORIZED FOR HIRE
Power units40
Trucks40
Phone5153323303

Filing history analysis

  • Operating authority on record since 1985-07-08 — 41 years.
  • 5 insurance cancellations on record, most recently 2020-11-07.
  • No suspension or revocation order served.
  • Current primary filing: $2,000,000 with Starstone Specialty Insurance Company, on file since 2025-09-01 — $1,250,000 above the federal minimum.
  • Filings from 3 insurers currently on record: Crum & Forster Specialty Insurance Company, Great West Casualty Co, Starstone Specialty Insurance Company.
  • 40 power units — a mid-size fleet, larger than 94% of carriers in the FMCSA census.

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