RTS Financial
Fast funding for your trucking business.
Get a free quoteFMCSA Carrier Profile
BLACKSTRING HOLDING LLC
DBA: A&r Construction
Pueblo, CO
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating and crash records checked
FMCSA status: Active registration · no operating authority · DOT 4290969
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
3 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- 3 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
4290969
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
October 1, 2025
FMCSA Registration
September 4, 2024
Annual Mileage
0 mi (0)
Contact Information
Address
2802 W 11th St, Pueblo, CO 81003-1180
Phone
Email
Owner / Officer
Sarah Blackwell
Officer 2
Kent Stringer
Cargo Types
General FreightBuilding MaterialsMachinery/Large ObjectsConstruction Materials
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
3
Driver Inspections
2
Vehicle Inspections
1
Out-of-Service Violations
0
Violations by Category
Vehicle Maintenance1
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Inspection Trend by Year
2026
2025
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
1 of 1 inspections
Unsafe Driving
0 of 3 inspections
Hours of Service
0 of 3 inspections
Driver Fitness
0 of 3 inspections
Controlled Substances
0 of 3 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CO3
Fleet & Equipment (2)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~1
of 4 reported to FMCSA
Trailers
~1
seen at inspection
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2009 Mack GU (Granite) | Tractor · Class 8 | 1M1AX07Y79M005617 | 3 | — |
| 2020 Dragon Esp | Dump · 34 ft | 1UNSD3427LR168260 | 3 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (3)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | 1663330013 | PUEBLO WEST CO | III | — | — | NONE | Truck Tractor Semi-trailer |
MACK DRAGON ESP |
1M1AX07Y79M005617 1UNSD3427LR168260 |
CO BKSJ67 CO DSX592 |
| February 6, 2026 | 0458894391 | PUEBLO CO | II | 2 | — | UNITED COMPANIES | Truck Tractor Semi-trailer |
MACK DRAGON ESP |
1M1AX07Y79M005617 1UNSD3427LR168260 |
CO BKSJ67 CO DSX592 |
| 392.2-SLLTL | State/Local Laws - Misc. traffic law violation | |||||||||
| 393.55E-B | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 | Brakes All Others | ||||||||
| September 30, 2025 | 0745760063 | CANON CITY CO | III | — | — | — | Truck Tractor Semi-trailer |
MACK DRAGON ESP |
1M1AX07Y79M005617 1UNSD3427LR168260 |
CO BKSJ67 CO DSX592 |
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| UNITED COMPANIES | 1 | February 6, 2026 |
CarrierChk Partners
View all partners →Your business here
Introduce your business to carriers.
Explore partnership
Sponsored listings — CarrierChk may be compensated for referrals. Partner with CarrierChk →
Data sourced from FMCSA MCMIS via Socrata. Record last updated: September 13, 2026.
Verify directly on FMCSA SAFER Web.
Verify Any Carrier Free
Search any DOT or MC number for live authority status, insurance on file, and full safety history.
This profile is built from public FMCSA records. If this is your company, you can hide your contact details or remove this page.