Carrier profile · USDOT 2469977 · MC-975804 · Updated Jun 13, 2026
FOUR O SIX UNDERGROUND INC
5 power unitsHELENA, MT50/100
AUTHORITY STATUS UNKNOWNMC-975804 STATUS UNKNOWNHAZMAT
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
- 3012 L DRIVE #3, HELENA, MT, 59602-8539
- Mailing address
- PO BOX 870, EAST HELENA, MT, 59635-0870
- Operation
- Interstate· Hazmat
Contact
- Phone
- (406) 521-0015
- beau@406ug.com
- Web domain
- 406ug.com
Registration
- Officers
- Beau Straub · Beau Straub
- USDOT / docket
- 2469977 · MC-975804
- First registered
- Jan 23, 2014
- Last MCS-150
- Sep 1, 2020 · 51,000 mi (2019)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 0.00
- D-U-N-S
- —
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.