The Diamond Freight System Inc
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.
Undeliverable physical address on the FMCSA record
USPS flagged this carrier's filed physical address as undeliverable — a common chameleon / shell signal. Confirm a working address before tendering.
Location
- Physical address
- PIER 50 A, SAN FRANCISCO, CA, 94158
- Mailing address
- P O BOX 884074, SAN FRANCISCO, CA, 94188-4074
- Operation
- Interstate
Contact
- Phone
- (415) 537-9590
- Fax
- (415) 537-9599
- Web domain
- sbc.net
Registration
- Officer
- Michael Comaich
- USDOT / docket
- 502026 · MC-201798
- First registered
- Oct 23, 1992
- Last MCS-150
- Aug 26, 2014 · 40,000 mi (2007)
- FMCSA safety rating
- Satisfactory · Sep 27, 1993
- 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.