Southern Underground LLC (USDOT 4391806)
3 cautions found.
- DOT number
- USDOT 4391806
- Operating authority
- No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-09-02. We could not confirm that live just now.
- Insurance on file
- No active liability (BIPD) insurance on file with FMCSA.
- Safety rating
- No published safety rating
- Fleet on file
- 4 power units, 2 drivers
- Operation type
- Interstate
- Physical address
- 20475 LAWRENCE 1070, PIERCE CITY, MO 65723-7102
- MCS-150 last filed
- 2025-04
Findings
- Vehicle OOS rate above national average (Caution): 50% vehicle OOS over 10 inspections vs. national average 22.88%
- Driver OOS rate above national average (Caution): 63.64% driver OOS over 11 inspections vs. national average 6.32%. Typically reflects HOS or CDL-compliance issues
- 3 BASICs at the FMCSA intervention threshold (Caution): Driver fitness, Unsafe driving, and Vehicle maintenance rank among similar carriers with recent violations (higher = worse). fleetfax peer estimate, not official CSA scores.
Frequently asked questions
What carrier is DOT 4391806?
DOT 4391806 (USDOT 4391806) is Southern Underground LLC, an interstate motor carrier.
What is Southern Underground LLC's USDOT number?
Southern Underground LLC's USDOT number is 4391806. No MC docket number is on file.
Is Southern Underground LLC currently authorized to operate?
No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-09-02. We could not confirm that live just now. Source: FMCSA registration and licensing records.
Does Southern Underground LLC have insurance on file with FMCSA?
No active liability (BIPD) insurance on file with FMCSA.
What is Southern Underground LLC's safety record?
In the last 24 months, FMCSA records show a 50.0% vehicle out-of-service rate for Southern Underground LLC, from 5 of 10 vehicle inspections, against a national average of 22.9% (fleetfax-computed from FMCSA inspections, as of 2026-08-29). FMCSA records also show 0 recordable crashes in the same window.
What is Southern Underground LLC's CSA score?
FMCSA does not publish a single CSA score for carriers. Southern Underground LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Southern Underground LLC's FMCSA safety rating?
Southern Underground LLC has no published FMCSA safety rating. Most US carriers have never received a rating review, so an unrated carrier is the common case, not a warning sign by itself.
Changes over time
Carriers change. Phone numbers, email addresses, insurance, authority. A sudden contact-info change is often the first sign of carrier identity fraud. fleetfax tracks these changes. Create a free account to follow changes on carriers you save.
View the full fleetfax report for Southern Underground LLC
Carriers based in Pierce City, MO
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Reconstructed from cached and fleetfax-ingested FMCSA public records, so it may be out of date. Records loaded Sep 2, 2026. Verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment. FMCSA status