Carrier profile · USDOT 348981 · Updated Sep 6, 2026
W B Mason Co Inc
834 power unitsavg 3.3 yrNational · 21 statesBROCKTON, MA88/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONALHAZMAT
Network & Fraud
Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.
Last 12 months: 7 trucks also ran under 10 other carriers
VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 16130USDOT 360872USDOT 1296119USDOT 4248238USDOT 3284765USDOT 3372054USDOT 1706017USDOT 3817964Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (54 trucks · 70 carriers)
Across all inspections on record: USDOT 1461529USDOT 1559451USDOT 3537456USDOT 3834613USDOT 3853686USDOT 633854USDOT 1671658USDOT 1761848
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)834834
Observed (24 mo)301301
Shared w/ other carriers5454
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
Shared-VIN cross-links· units inspected under more than one USDOT
Showing the 40 most cross-linked of 54 shared VINs.