Carrier profile · USDOT 44035 · MC-144606 · Updated Jun 13, 2026

DUNCAN & SON LINES INC

259 power unitsavg 4.7 yrNational · 20 statesBUCKEYE, AZ88/100
CARRIER ACTIVEMC-144606 ACTIVERATED SATISFACTORYHAZMAT
Verified linksduncantruckingltd.comFMCSA SAFER

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
revealed
States observed19
US states
Inspections · 24 mo416
CA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
BUCKEYE, AZ
23860 W US HWY 85
Top corridor
CA ⇄ AZ
CA 242 · AZ 69 · NM 34
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 19 states · trailing 24 mo

Roadside inspections by state · DUNCAN & SON LINES INC · trailing 24 months
StateCoverageInspections
CACalifornia242
AZArizonaHQ69
NMNew Mexico34
TXTexas18
ARArkansas11
OKOklahoma8
NVNevada6
TNTennessee6
COColorado4
UTUtah3
MOMissouri3
IAIowa3
KYKentucky2
WAWashington2
NENebraska1
LALouisiana1
IDIdaho1
SDSouth Dakota1
WYWyoming1