Carrier profile · USDOT 410407 · Updated Sep 6, 2026

Spenard Builders Supply LLC

DBA A BUILDERS FIRST SOURCE COMPANY

133 power unitsavg 11.9 yrLocal · 1 statesANCHORAGE, AK100/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

133Power units

65 observed · MCS-150

16Trailers seen

Decoded · vPIC

11.9Avg age (yr)

1997–2026 · vPIC

Call dispatch(972) 621-2233 Email dispatchmichael.sieburt@bldr.com

Click to see how we scored it

Load decision · FMCSA snapshot · Sep 6, 2026

Clear to load

Active authority and a clean federal record. No blocking issues found.

Watch · 0

Nothing flagged.

In good standing · 2

Established 52 yearsOperating authority has been on file since 1974.Out-of-service rates below national averageBoth vehicle and driver OOS rates beat the national benchmark across 251 inspections.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo4.9%

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo4.9%

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

133 power units. Brokers price each fleet type apart.

Fleet age vs peersTypical

11.9 yr

Model years 1997–2026 · peer benchmark unavailable.

Identity stabilityStable

52 yr unchanged

Same registration since 1974 — no chameleon / reincarnation signal.

Safety

141 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 4.9%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.7%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 103 vehicle and 139 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

4.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 2.2 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

138 inspections in the charted months · busiest month Mar '25 · 13

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Expected band

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.5 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 133-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 133
Inspections · 24 mo: 141
Annualized: ≈71 / yr
Coverage: ≈0.5 inspections / unit · yr

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving15 · 0 OOS
393.47 Brake actuators / linings / componentsVehicle Maintenance10 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance8 · 1 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance6 · 0 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance5 · 0 OOS
393.53 Automatic brake adjusters / indicatorsVehicle Maintenance5 · 0 OOS
396.17 Periodic (annual) inspectionVehicle Maintenance4 · 0 OOS
393.100 Cargo securement (general)Vehicle Maintenance3 · 3 OOS
393.110 Cargo securement — number of tiedownsVehicle Maintenance2 · 2 OOS
393.201 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & Insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 133
Observed power (24 mo): 65
Trailers (towed): 16

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

11.9 yr

Average age

2026

Newest model yr

1997

Oldest model yr

85.2%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & Lanes

Revealed by inspection density across 1 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal

revealed

States observed

US states

Inspections · 24 mo

141

AK busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

ANCHORAGE, AK

4412 LOIS DR

Top corridor

AK 141

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & Fraud

Affiliated entities & reincarnation signals · for review, not a verdict

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.

Show all-time history (7 trucks · 7 carriers)

Across all inspections on record: USDOT 125119 USDOT 3827177 USDOT 16130 USDOT 4020058 USDOT 1640569 USDOT 4217306 USDOT 325981

Shares a registration email domain with other carriers

@bldr.com — 10 carriers: USDOT 84064 USDOT 149936 USDOT 309348 USDOT 325981 USDOT 331442 USDOT 342515 USDOT 351877 USDOT 400989

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

133

Observed (24 mo)

Shared w/ other carriers

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 4412 LOIS DR, ANCHORAGE, AK, 99517-3115
Mailing address: 2001 BRYAN STREET SUITE 1600, DALLAS, TX, 75201
Operation: Intrastate (Non-Hazmat)

Contact

Phone: (972) 621-2233
Cell: (945) 331-8900
Email: michael.sieburt@bldr.com
Web domain: bldr.com

Registration

Officers: Alan Shamblin · Michael Sieburt
USDOT / docket: 410407
First registered: Jun 1, 1974
Last MCS-150: Sep 18, 2024 · 935,307 mi (2022)
FMCSA safety rating: Not rated
D-U-N-S: 35408830

Fleet (self-reported · MCS-150)

133

Power units

158

Drivers

CDL drivers

935,307

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

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.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

No verified reviews yet

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Verification summaryAuthority, insurance, safety and identity facts for SPENARD BUILDERS SUPPLY LLC.

SPENARD BUILDERS SUPPLY LLC (USDOT 410407) has a Vektor safety score of 100/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Sep 6, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Sep 6, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Sep 6, 2026.

Its vehicle out-of-service rate was 4.9% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Sep 6, 2026.

The carrier received 141 roadside inspections in the last 24 months — 103 vehicle-level and 139 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Sep 6, 2026.

The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Sep 6, 2026.

It reports 133 power units and 158 drivers in its most recent MCS-150 filing dated Sep 18, 2024.

It has no FMCSA-assigned safety rating in the federal record refreshed Sep 6, 2026.

Frequently asked

What is SPENARD BUILDERS SUPPLY LLC's USDOT number?

SPENARD BUILDERS SUPPLY LLC's USDOT number is 410407.

Is SPENARD BUILDERS SUPPLY LLC authorized to operate?

As of Sep 6, 2026, SPENARD BUILDERS SUPPLY LLC is active in the FMCSA register.

What is SPENARD BUILDERS SUPPLY LLC's safety record?

SPENARD BUILDERS SUPPLY LLC has a 4.9% vehicle out-of-service rate (national average 22.26%) across 251 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 100/100 (tier: clear).

How big is SPENARD BUILDERS SUPPLY LLC's fleet?

SPENARD BUILDERS SUPPLY LLC operates 133 power units and 158 drivers per its most recent MCS-150 filing.

Where is SPENARD BUILDERS SUPPLY LLC based?

SPENARD BUILDERS SUPPLY LLC is based in ANCHORAGE, AK, with roadside inspections recorded across 1 state.

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