Carrier profile · USDOT 2589251 · Updated Jun 13, 2026
Margret Flores Flores De Serafin
DBA S & M TRUCKING
2 power unitsavg 20.5 yrLocal · 1 statesDALLAS, TX50/100
AUTHORITY STATUS UNKNOWN
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
- 10613 SPANGLER RD, DALLAS, TX, 75220
- Operation
- Intrastate (Non-Hazmat)
Contact
- Phone
- (817) 367-8325
- Cell
- (817) 344-9388
- alonso@instexas.com
- Web domain
- instexas.com
Registration
- Officer
- Margret Flores Flores De Serafin
- USDOT / docket
- 2589251
- First registered
- Mar 16, 2015
- Last MCS-150
- Feb 26, 2026 · 1 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.