Carrier profile · USDOT 2634473 · MC-917230 · Updated Jul 18, 2026
PACIFIC GYPSUM SUPPLY INC
DBA J&B MATERIALS, J&B MATERIALS
77 power unitsavg 8.8 yrRegional · 3 statesEL CAJON, CA75/100
AUTHORITY STATUS UNKNOWNMC-917230 STATUS UNKNOWN
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: 8 trucks also ran under 1 other carrier
VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 3670001Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (27 trucks · 6 carriers)
Across all inspections on record: USDOT 1075190USDOT 3670001USDOT 3670055USDOT 1635981USDOT 2654473USDOT 2654165
Shares a registration email domain with other carriers
@gms.com — 5 carriers: USDOT 313108USDOT 403686USDOT 1189816USDOT 2862139
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)7777
Observed (24 mo)5151
Shared w/ other carriers2727
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
Owner / group view· confidence: email domain
Owner / group view
Affiliated authorities
Collapses 5 related authorities · joined by email domain
- Authorities
- 5
- Combined power
- 628
- States
- 4
- Oldest authority
- Apr 13, 1988
- Active now
- 3
- PACIFIC GYPSUM SUPPLY INC· viewingUSDOT 263447377PU
- GTS DRYWALL SUPPLY COMPANYUSDOT 313108214PU
- TAMARACK MATERIALS INCUSDOT 403686209PU
- GYPSUM SUPPLY COMPANYUSDOT 118981682PU
- GYPSUM SUPPLY INSTALLED INSULATION LLCUSDOT 286213946PU
Affiliated entities· hover to preview