Southwest Interstate Transportation INC

USDOT 270551 · MC191270 · Cumby, TX
USDOT ActiveCommon authorityContract authority (as of 5/2026)Safety: Satisfactory
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Company snapshot
Legal name
Southwest Interstate Transportation INC
USDOT number
270551
MC docket
MC191270
Physical address
3373 Fm 499 West, Cumby, TX, 75433
Power units
19
Drivers
18
Operation
Interstate
Operating radius
Interstate 100+ mi
Cargo
General Freight, Fresh Produce, Grain, Feed, Hay, Coal/Coke, Chemicals, Commodities Dry Bulk
Operation class
Authorized For-Hire
Last MCS-150 filing
Feb 14, 2025
Operating authority (as of 5/2026)
Common authority
Active
Contract authority (as of 5/2026)
Active
Broker authority
Not held
Authority granted
Mar 26, 1986
MCSIP step
0
Insurance on file
Insurer (writing paper)
Spinnaker Insurance Company
Filing form
BMC-91X
Coverage amount
$1,000,000
BI/PD on file
$1,000,000
Estimated renewal window
Q1 2027

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Safety record
FMCSA safety rating
Satisfactory
Roadside inspections (24 mo)
43
Out-of-service inspections
7
Inspections with violations
23
Crashes (24 mo)
1
BASICs with acute/critical violations
0
SMS population
Interstate
Common questions

Is Southwest Interstate Transportation INC insured?

Yes. Southwest Interstate Transportation INC (USDOT 270551) has active BI/PD liability insurance on file with FMCSA, currently written by Spinnaker Insurance Company, with $1,000,000 in coverage on the filing.

What insurance company does Southwest Interstate Transportation INC use?

Southwest Interstate Transportation INC's current BI/PD filing is written by Spinnaker Insurance Company. Insurer changes show up in the daily-refreshed federal filing record.

What is Southwest Interstate Transportation INC's MC number?

Southwest Interstate Transportation INC's FMCSA docket is MC191270, paired with USDOT 270551.

Is Southwest Interstate Transportation INC safe to work with?

Southwest Interstate Transportation INC's FMCSA safety rating is Satisfactory, with 43 roadside inspections in the last 24 months, 1 recorded crashes, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page.

When does Southwest Interstate Transportation INC's insurance renew?

Based on its filing history, Southwest Interstate Transportation INC's BI/PD policy is estimated to renew in Q1 2027. The exact estimated X-date, with alerts when it changes, is in Market Tracker. Unlock USDOT 270551’s exact X-date →

How many trucks does Southwest Interstate Transportation INC operate?

Southwest Interstate Transportation INC reports 19 power units and 18 drivers in its latest MCS-150 census filing.

Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Sep 15, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.

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