Carrier profile · USDOT 1708881 · MC-916426 · Updated Jun 13, 2026
Mason Dixon Contractors LLC
DBA MDX SITE
3 power unitsLocal · 2 statesWILLOW STREET, PA50/100
CARRIER ACTIVEMC-916426 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
- 6 BROOKS AVENUE, WILLOW STREET, PA, 17584
- Mailing address
- PO BOX 220, WILLOW STREET, PA, 17584
- Operation
- Interstate
Contact
- Phone
- (717) 517-8841
- Cell
- (717) 572-1057
- Web domain
- mdxsite.net
Registration
- Officers
- James R Mcelroy Sr · Thomas L. Mcelroy
- USDOT / docket
- 1708881 · MC-916426
- First registered
- Nov 15, 2007
- Last MCS-150
- Jan 6, 2026 · 50,000 mi (2025)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 5.55
- 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.