Cargo carriedGeneral Freight, U.S. Mail, Paper Products, Other
MCS-150 mileage35,000,000 mi (2026)
Phone (on file)(800) 958-5844
Sources: census record as of October 19, 2026; authority and insurance from FMCSA L&I, checked October 4, 2026; inspections and crashes from FMCSA SMS, checked October 4, 2026.
Quick answer
Southern Mail Service INC is an interstate motor carrier in Conroe, Texas (USDOT 172954) with active operating authority and a self-reported fleet of 381 power units.
Key takeaways
USDOT 172954 is registered to Southern Mail Service INC, an interstate carrier based in Conroe, TX.
MC docket number on file: MC-1535071.
Operating authority status: authorized (Common), with $1M BIPD insurance on file.
Self-reported fleet size: 381 power units and 275 drivers (FMCSA MCS-150 self-report; sanitized for plausibility).
Registered cargo types include general freight, u.s. mail, paper products, other.
15 of 87Vehicle inspections with an out-of-service order17.2%
1 of 128Driver inspections with an out-of-service order0.8%
26Crashes on file3 fatalities · 20 injuries reported
Source: FMCSA Safety Measurement System, roadside inspections and crashes over a ~24-month window, checked October 4, 2026. An out-of-service rate is the share of inspections in which a vehicle or driver was placed out of service. With few inspections, one result moves the rate a lot. FMCSA crash records include crashes regardless of fault. None of these figures is a safety rating. The official Satisfactory/Conditional/Unsatisfactory safety rating is issued separately. See SAFER.
About Southern Mail Service INC
Southern Mail Service INC is an interstate motor carrier based in Conroe, Texas, registered with the FMCSA under USDOT 172954. It holds active operating authority (MC-1535071), with $1M of BIPD insurance on file. The carrier self-reports a fleet of 381 power units and 275 drivers. Registered cargo includes general freight, u.s. mail, paper products, other. Its most recent MCS-150 filing reported 35,000,000 mi (2026).
Before you work with this carrier
Confirm the safety rating. Authority and insurance are shown or linked above. Open the SAFER snapshot for the official safety rating and out-of-service status.
Verify insurance is current. Coverage on file can lapse; confirm active BIPD/cargo before tendering a load.
Match authority to the work. For-hire loads need active operating authority. A USDOT number alone isn't enough.