Carrier profile · USDOT 348981 · Updated Jun 13, 2026
W B MASON CO INC
834 power unitsavg 3.4 yrNational · 21 statesBROCKTON, MA88/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONALHAZMAT
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 radiusNational
revealedStates observed2020
US statesInspections · 24 mo502502
NY busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
BROCKTON, MA
Top corridor
NY ⇄ MA
Density
fewermore
State activity ranking· all 20 states · trailing 24 mo
| State | Coverage | Inspections |
|---|---|---|
| NYNew York | 166 | |
| PAPennsylvania | 79 | |
| NHNew Hampshire | 47 | |
| MDMaryland | 39 | |
| MEMaine | 39 | |
| MAMassachusettsHQ | 33 | |
| NJNew Jersey | 27 | |
| VTVermont | 21 | |
| FLFlorida | 20 | |
| CTConnecticut | 14 | |
| DCDistrict of Columbia | 3 | |
| RIRhode Island | 3 | |
| CACalifornia | 2 | |
| OHOhio | 2 | |
| ILIllinois | 2 | |
| MIMichigan | 1 | |
| GAGeorgia | 1 | |
| WVWest Virginia | 1 | |
| VAVirginia | 1 | |
| DEDelaware | 1 |