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STX UNDERGROUND LLC

DOT 3606119ActiveIntrastate Non-HazmatBROWNSVILLE, TX

COMPANY

Authority since
—
MCS-150
2025-05-13 · 202 mi (2024)
Fleet
2 units · 2 trailers · 2 drivers
Annual mileage (VMT)
84,000 mi (2025)
Owner origin
Southeast-asian
Origin candidates
Filipino 34%

ADDRESS

Physical
1511 LOS SABALES DR
BROWNSVILLE, TX 78520
Mailing
Same as physical

CONTACT

Phone
9565727466
Email
stxundergroundllc@gmail.com

OFFICERS

Primary Officer
ROLANDO MARTINEZ JR.
Title
MANAGING MEMBER
Origin
Southeast-asian

OPERATION & CARGO

Operation classification
Private Property
Specialty
Towing & Recovery / Driveaway
Cargo types
5
Motor VehiclesDriveaway / TowawayBuilding MaterialsMachinery, Large ObjectsConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
—
Active authority
INSURANCE
None
No coverage on file
RISK GRADE
Severe Risk
4 risk factors · 1 strengths
OOS RATE
72.7%
16 / 22 inspections

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Checking local VIN index…

Severe Risk

4 risk factors · 1 strengths · 5 data points

SAFETY PERFORMANCE

Crash Record
0 crashes · 0 fatal · 0 with injuries · 0 tow-away
Clean Inspection Rate
27% — 6 clean of 22 inspections
Out-of-Service Rate
72.7% — driver OOS 9, vehicle OOS 15

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2025-05-13

INSURANCE

Active Coverage
No insurance policies on file

SUMMARY

Severe OOS rate 67% (last 24 mo)
9.7 violations per inspection
Low clean-inspection rate (27%)
No active insurance on file
No crashes in the last 24 months

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