Carrier profile · USDOT 936545 · MC-403455 · Updated Jun 13, 2026
HCKM LLC
DBA GERLOCK TOWING
19 power unitsRegional · 4 statesPORTLAND, OR74/100
CARRIER ACTIVEMC-403455 ACTIVEHAZMAT
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
- 7821 NE 33RD DR, PORTLAND, OR, 97211
- Operation
- Interstate· Hazmat
Contact
- Phone
- (503) 235-0542
- Fax
- (503) 331-7588
- Web domain
- gerlocktowing.com
Registration
- Officers
- Donny Callahan · Dawn Callahan
- USDOT / docket
- 936545 · MC-403455
- First registered
- Feb 28, 2001
- Last MCS-150
- Mar 30, 2026 · 355,836 mi (2025)
- FMCSA safety rating
- Not rated
- 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.