Carrier profile · USDOT 2284804 · Updated Jun 13, 2026
S B COX READY MIX INC
84 power unitsavg 11.5 yrLocal · 1 statesROCKVILLE, VA74/100
AUTHORITY 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: 1 truck 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 719199Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (7 trucks · 4 carriers)
Across all inspections on record: USDOT 719199USDOT 441790USDOT 203000USDOT 1571781
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)8484
Observed (24 mo)2222
Shared w/ other carriers77
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
| VIN | Carriers | Inspections | First seen | Last seen |
|---|---|---|---|---|
| 1M2GR4GC2LM012526 | 2 | 3 | Jul 27, 2023 | Jun 15, 2026 |
| 1M1PN4GY4NM009240 | 2 | 2 | Apr 30, 2024 | Mar 20, 2026 |
| 1M2GR4GC7NM028031 | 2 | 2 | Oct 5, 2023 | Nov 18, 2025 |
| 1M2GR2NC8RM004611 | 2 | 2 | Nov 27, 2023 | Sep 4, 2025 |
| 1M2AG11C75M023995 | 2 | 2 | Dec 13, 2024 | Mar 3, 2025 |
| 1M2AG11C06M051221 | 2 | 2 | Aug 26, 2024 | Jan 15, 2025 |
| 1M2GR2TC9MM001356 | 2 | 2 | Jun 29, 2023 | Oct 5, 2023 |