Carrier profile · USDOT 2574313 · MC-900164 · Updated Jun 13, 2026
DIAMOND PLUS TRANSPORTATION INC
14 power unitsavg 9.5 yrMulti-region · 14 statesWALNUT, CA80/100
CARRIER ACTIVEMC-900164 ACTIVE
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
revealedStates observed1414
US statesInspections · 24 mo6565
CA busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
WALNUT, CA
Top corridor
CA
Density
fewermore
State activity ranking· all 14 states · trailing 24 mo
| State | Coverage | Inspections |
|---|---|---|
| CACaliforniaHQ | 24 | |
| ARArkansas | 14 | |
| ALAlabama | 4 | |
| NMNew Mexico | 4 | |
| AZArizona | 3 | |
| TXTexas | 3 | |
| MSMississippi | 3 | |
| TNTennessee | 2 | |
| GAGeorgia | 2 | |
| OKOklahoma | 2 | |
| FLFlorida | 1 | |
| LALouisiana | 1 | |
| PAPennsylvania | 1 | |
| NCNorth Carolina | 1 |