Carrier profile · USDOT 637791 · MC-384420 · Updated Jun 13, 2026
Rex Lee Siemer Trucking LLC
17 power unitsavg 19.2 yrRegional · 5 statesMERCER, MO54/100
CARRIER ACTIVEMC-384420 ACTIVERATED SATISFACTORY
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 14603 US HWY 65, MERCER, MO, 64661-9705
- Operation
- Interstate
Contact
- Phone
- (660) 382-4665
- Cell
- (660) 748-5658
- Fax
- (660) 382-5411
- rsiemer@grm.net
- Web domain
- grm.net
Registration
- Officer
- Dona Siemer
- USDOT / docket
- 637791 · MC-384420
- First registered
- Apr 19, 1996
- Last MCS-150
- Feb 18, 2026 · 879,684 mi (2024)
- FMCSA safety rating
- Satisfactory · Mar 2, 2004
- D-U-N-S
- 792607736
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.