Mammoth Underground LLC (USDOT 1188979)
No blockers or cautions found.
- Operating authority
- No active operating authority on file with FMCSA.
- Insurance on file
- No active liability (BIPD) insurance on file with FMCSA.
- Safety rating
- No published safety rating
- Fleet on file
- 5 power units, 3 drivers
- Operation type
- Interstate
- Physical address
- 421 W BONANZA RD, LAS VEGAS, NV 89106-3226
- MCS-150 last filed
- 2025-08
Frequently asked questions
What carrier is USDOT 1188979?
USDOT 1188979 is Mammoth Underground LLC, an interstate motor carrier.
What is Mammoth Underground LLC's USDOT number?
Mammoth Underground LLC's USDOT number is 1188979. No MC docket number is on file.
Is Mammoth Underground LLC currently authorized to operate?
No active operating authority on file with FMCSA. Source: FMCSA registration and licensing records.
Does Mammoth Underground LLC have insurance on file with FMCSA?
No active liability (BIPD) insurance on file with FMCSA.
How long has Mammoth Underground LLC been in business?
Mammoth Underground LLC's operating authority was first granted in 2003. FMCSA records show authority age, which can differ from how long the company has existed.
What is Mammoth Underground LLC's safety record?
In the last 24 months, FMCSA records show 3 roadside inspections with a 0.0% vehicle out-of-service rate (national average 22.7%) and 0 recordable crashes.
What is Mammoth Underground LLC's CSA score?
FMCSA does not publish a single CSA score for carriers. Mammoth Underground LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Mammoth Underground LLC's FMCSA safety rating?
Mammoth 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.
View the full fleetfax report for Mammoth Underground LLC
Reconstructed from cached and fleetfax-ingested FMCSA public records (live FMCSA was unavailable) — may be out of date; verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment.