Carrier profile · USDOT 3185105 · MC-1201065 · Updated Jun 13, 2026
3 Diamond Trucking LLC
1 power unitavg 20.5 yrLocal · 2 statesMANHATTAN, MT50/100
CARRIER ACTIVEMC-1201065 ACTIVE
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
- 303 PINE ST, MANHATTAN, MT, 59741
- Mailing address
- PO BOX 242, MANHATTAN, MT, 59741
- Operation
- Interstate
Contact
- Phone
- (406) 599-3310
- Cell
- (406) 306-1087
Registration
- Officer
- Austin Oldenburger
- USDOT / docket
- 3185105 · MC-1201065
- First registered
- Sep 9, 2018
- Last MCS-150
- Sep 11, 2025 · 78,000 mi (2024)
- 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.