Trucking Lens

Southern Mail Service Inc

USDOT 172954MC-1535071USDOT activeAuthority active· Conroe, TX

Southern Mail Service Inc (USDOT 172954) runs 381 power units and 275 drivers based in Conroe, TX, with active operating authority as a motor carrier of property under MC-1535071. The earliest grant on file is from April 2023, 3 years, 6 months ago. $1,000,000 of liability coverage is on file with Great West Casualty Co.

Operating authority

DocketAuthorityStatusInsurance requiredOn file
MC-1535071Motor carrier of propertyActive$750,000 liability$1,000,000 liability

Earliest grant on file: Apr 14, 2023 (3 years, 6 months ago).

Insurance and bonds on file

TypeInsurerCoverageEffectiveCancellation
Liability (BIPD) · form 91XGreat West Casualty Co.$1,000,000Mar 28, 2023—

Confirm coverage with the insurer before tendering a load.

Authority history

DateDocketAction
Apr 14, 2023MC-1535071Granted · motor carrier of property
Apr 14, 2023MC-1535071Granted · motor carrier of property

Registration

USDOT number172954
USDOT statusActive
DocketsMC-1535071
Legal nameSouthern Mail Service Inc
OperationInterstate
ClassificationAuthorized for hire
Business typeCorporation
LocationConroe, Texas 77303
USDOT addedJun 1, 1974
Last MCS-150 updateMay 13, 2026
Safety ratingSatisfactory · Nov 13, 2003

Fleet

Power units381
Trucks361
Drivers275 · 275 with a CDL
Annual miles35,000,000 · 2026

Cargo carried

General freight, U.S. mail, Paper products, general freight

Check it yourself

Data as of Nov 12, 2026. Sources

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