Carrier profile · USDOT 4446488 · MC-1751570 · Updated Jun 13, 2026

Southern Illinois Specialized LLC

7 power unitsavg 13.2 yrLocal · 1 statesDU QUOIN, IL50/100
CARRIER ACTIVEMC-1751570 ACTIVE
Verified linksFMCSA SAFER

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.

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (4 trucks · 1 carriers)
Across all inspections on record: USDOT 2431531

Shares a company officer with other carriers

mark mathis — 9 carriers: USDOT 340079USDOT 804100USDOT 1499320USDOT 1792142USDOT 1927691USDOT 2087863USDOT 2655422USDOT 4407997

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)7
Observed (24 mo)3
Shared w/ other carriers4

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

VINCarriersInspectionsFirst seenLast seen
1M1AN09Y8DM013236View sourced platform decode23Mar 26, 2025Jul 8, 2026
4C9C5D325GS071723View sourced platform decode23Sep 25, 2024Jul 8, 2026
1FUJA6AV86PW12793View sourced platform decode23Jan 30, 2025Sep 3, 2025
1M1AN07Y9CM011657View sourced platform decode23May 15, 2024Aug 29, 2025

Owner / group view· confidence: officer

Owner / group view

Affiliated authorities

Collapses 9 related authorities · joined by officer

Authorities
9
Combined power
22
States
6
Oldest authority
Jan 11, 1989
Active now
2

Affiliated entities· hover to preview

MARK MATHISMATHIS & MARK R MATHISMARK MATHISM C MATHIS TRANSPORT LLCCONFLUENCE ENERGYAMERICAN REMODELING OF INDIANAMATHIS LAND AND TIMBER LLCTRI VALLEY CONCRETE