SOUTHERN MAIL SERVICE INC
AUTHORIZEDUSDOT
172954
MC Number
1535071
Fleet Size
361
Total Drivers
275
FMCSA-derived snapshot updated: November 8, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
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Safety overview
SOUTHERN MAIL SERVICE INC is a large interstate motor carrier based in CONROE, Texas, operating 361 power units with 275 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 0.8% comes in under the 6.7% national average. They have 26 crashes on file (3 fatal, 13 with injuries). FMCSA records show 128 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Texas is 13.5% and the average vehicle OOS rate is 29.8% across 189,218 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
128
Total
59%
Driver %
Insurance on file
Liability (BIPD)
Great West Casualty Co — eff. Mar 28, 2023
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: FMCSA Motus. Imported Nov 11, 2026. Verify current filings directly with FMCSA before relying on them.
Crash history
26
Total Crashes
Similar carriers in Texas
Other carriers in the same state with a similar fleet size.
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STANDARD LOGISTICS TRANSPORTATION LLC
Frequently asked questions
Is SOUTHERN MAIL SERVICE INC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for SOUTHERN MAIL SERVICE INC (USDOT #172954) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is SOUTHERN MAIL SERVICE INC's safety record?
SOUTHERN MAIL SERVICE INC has 128 inspections in CarrierOwl's current imported snapshot and 26 matching crashes. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does SOUTHERN MAIL SERVICE INC operate?
SOUTHERN MAIL SERVICE INC operates 361 power units with 275 drivers on file. That puts them in the large carrier category by FMCSA standards.
Does SOUTHERN MAIL SERVICE INC transport hazardous materials?
No. SOUTHERN MAIL SERVICE INC does not have a hazardous materials flag in the FMCSA database.
Where is SOUTHERN MAIL SERVICE INC located?
SOUTHERN MAIL SERVICE INC is based in CONROE, Texas at 2505 N FRAZIER, 77303. Phone: (800) 958-5844.
What are SOUTHERN MAIL SERVICE INC's out-of-service rates?
SOUTHERN MAIL SERVICE INC's driver out-of-service rate is 0.8%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 20.5%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026.