Carrier profile · USDOT 136555 · MC-80252 · Updated Aug 12, 2026

Southwestern Motor Transport Inc

DBA SMT LINES

288 power unitsavg 8.2 yrMulti-region · 11 statesSAN ANTONIO, TX70/100
BROKER AUTHORITY ACTIVEMC-80252 BROKER ACTIVERATED SATISFACTORYHAZMAT
Verified linkssmtl.comFMCSA SAFER

Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Operating footprint· revealed by roadside-inspection geography

Operating radiusMulti-region
revealed
States observed11
US states
Inspections · 24 mo154
TX busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
SAN ANTONIO, TX
4600 GOLDFIELD
Top corridor
TX
TX 120 · AR 10 · IL 5
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 11 states · trailing 24 mo

Roadside inspections by state · SOUTHWESTERN MOTOR TRANSPORT INC · trailing 24 months
StateCoverageInspections
TXTexasHQ120
ARArkansas10
ILIllinois5
OKOklahoma5
INIndiana5
MOMissouri2
NMNew Mexico2
TNTennessee2
OHOhio1
ALAlabama1
MSMississippi1