Fleet typeIdentity
Asset-based
17 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 637791 · MC-384420 · Updated 06/13/2026
REX LEE SIEMER TRUCKING LLC
17 power unitsavg 19.2 yrRegional · 5 statesMERCER, MO
CARRIER ACTIVEMC-384420 ACTIVERATED SATISFACTORY
Observed fleet · trailing 24 mo daily
17Power units
9 observed · MCS-150
9Trailers seen
Decoded · vPIC
19.2Avg age (yr)
2000–2023 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
High risk
Multiple serious issues on the federal record. Verify directly before any tender.
Active operating authorityInsurance on fileVehicle out-of-service rate well above average
Watch · 4
Vehicle out-of-service rate well above average40.0% of vehicle inspections were placed out of service vs the 22.3% national average.Driver out-of-service rate well above average14.3% of driver inspections were placed out of service vs the 6.7% national average.Fatal crash on record1 crash(es) involving a fatality are on this carrier's record.Reincarnated carrier — prior authority revokedFMCSA links this carrier to a previously revoked operating authority — the classic chameleon-carrier pattern. Verify it is not evading an enforcement history.
USDOT registration3030 yr registered
Active for-hireInsurance (BIPD)On file
FMCSA L&IVehicle OOS · 24-mo40.040.0 %
▲ 22.26% nat'lCrashes · fatal11
2 in 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersOlder
19.2 yr
Model years 2000–2023 · peer benchmark computing.
Identity stabilityFlagged
30 yr unchanged
Linked to a previously revoked authority — verify before tendering.
AI readFull read
Is REX LEE SIEMER TRUCKING LLC safe to work with?
Is REX LEE SIEMER TRUCKING LLC safe to load? REX LEE SIEMER TRUCKING LLC (USDOT 637791, MC-384420) is an active asset-based motor carrier based in MERCER, MO, operating 17 power units and 9 drivers. Operating authority has been active 30 years (past the 24-month broker-confidence threshold). Across 20 roadside inspections, its vehicle out-of-service rate over the last 24 months is 40.0% (above the 22.26% national average), with 2 reportable crashes in the last 24 months. FMCSA rates it Satisfactory. Vektor rates it high risk (47/100), with the leading concern: vehicle out-of-service rate well above average. Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
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Frequently asked
What is REX LEE SIEMER TRUCKING LLC's USDOT number?
REX LEE SIEMER TRUCKING LLC's USDOT number is 637791, and its motor carrier number is MC-384420.
Is REX LEE SIEMER TRUCKING LLC authorized to operate?
As of 2026-06-13, REX LEE SIEMER TRUCKING LLC is active in the FMCSA register with common, contract, broker operating authority on file.
What is REX LEE SIEMER TRUCKING LLC's safety record?
REX LEE SIEMER TRUCKING LLC has a 40.0% vehicle out-of-service rate (national average 22.26%) across 20 roadside inspections, with 2 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 47/100 (tier: high_risk).
How big is REX LEE SIEMER TRUCKING LLC's fleet?
REX LEE SIEMER TRUCKING LLC operates 17 power units and 9 drivers per its most recent MCS-150 filing.
Where is REX LEE SIEMER TRUCKING LLC based?
REX LEE SIEMER TRUCKING LLC is based in MERCER, MO, with roadside inspections recorded across 5 states.
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