Carrier profile · USDOT 3911936 · MC-1444344 · Updated Jun 30, 2026

KIYOUNG YUN

DBA FIRST END COMPANY

1 power unitavg 7.8 yrLocal · 1 statesBREA, CA74/100

CARRIER ACTIVEMC-1444344 ACTIVE

Observed fleet · trailing 24 mo daily

1Power units

1 observed · MCS-150

3Trailers seen

Decoded · vPIC

7.8Avg age (yr)

2018–2019 · vPIC

Call dispatch(619) 751-7749 Email dispatchnasesora@gmail.com

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Load decision · FMCSA snapshot · Jun 30, 2026

Review before loading

Operating, but with flags a broker should weigh before tendering freight.

Active operating authorityInsurance on fileVehicle out-of-service rate well above average

Watch · 2

Vehicle out-of-service rate well above average75.0% of vehicle inspections were placed out of service vs the 22.26% national average.Driver out-of-service rate well above average50.0% of driver inspections were placed out of service vs the 6.7% national average.

In good standing · 3

Active operating authorityActive for-hire authority is on file with FMCSA.Insurance on fileBIPD (liability) insurance is on file with FMCSA.No reported crashesNo DOT-reportable crashes are on this carrier's record.

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$750K in force

FMCSA L&I

Vehicle OOS · 24-mo75.0%

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$750K in force

FMCSA L&I

Vehicle OOS · 24-mo75.0%

▲ 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

Owner-operator

1 power unit. Brokers price each fleet type apart.

Fleet age vs peersTypical

7.8 yr

Model years 2018–2019 · peer benchmark unavailable.

Identity stabilityStable

4 yr unchanged

Same registration since 2022 — no chameleon / reincarnation signal.

Safety

4 inspections · 24 mo · vs national benchmarks

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

Vehicle OOS 75.0%24-mo cumulative

050%nat'l 22.26%

Driver OOS 50.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 4 vehicle and 4 driver inspections over 24 months.

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

57.1% · 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 23.8 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

4 inspections in the charted months · busiest month Oct '25 · 1

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.

Heavily inspected

Under-inspected

Expected

Well-monitored

Heavily inspected

≈2.0 / unit·yr

thin signalabundant signal

Among the more heavily-inspected carriers for its size — abundant roadside signal. Coverage isn't the question here; the out-of-service and crash record is.

Registered power units: 1
Inspections · 24 mo: 4
Annualized: ≈2 / yr
Coverage: ≈2.0 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.

393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
393.207 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance2 · 1 OOS
393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance1 · 1 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance1 · 1 OOS
391.41 No / expired medical certificateDriver Fitness1 · 1 OOS
396.5 Oil and/or grease leakVehicle Maintenance1 · 0 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving1 · 0 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & insurance

Can they legally + adequately haul your load?

Operating authority· 49 CFR · per type

Operating authority

Common: Active
Contract: None
Broker: None

Insurance & bonds

BIPD / liability$750,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$750K in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $750K meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’25 · 2 insurers · 0 lapsesContinuous

United Specialty’22–’23

Hyundai Marine’23–now

20222023202420252026now

Shorter eras are too brief to label at this scale — all 2 insurers are named in the list below.

BIPD in force — $750,000 · HYUNDAI MARINE & FIRE INS CO LTD (US BRANCH) · since Aug 2025

All 2 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
HYUNDAI MARINE & FIRE INS CO LTD (US BRANCH)	Aug 2023 → Aug 2025	$750K	2
UNITED SPECIALTY INSURANCE COMPANY	Aug 2022 → Aug 2023	$750K	2

Explore full authority & insurance record

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 1
Observed power (24 mo): 1
Trailers (towed): 3

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

Fleet age· model years · decoded VINs

7.8 yr

Average age

2019

Newest model yr

2018

Oldest model yr

25.0%

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

CA busiest

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

Home base

BREA, CA

1509 SCHAFFER CT

Top corridor

CA 4

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 (3 trucks · 4 carriers)

Across all inspections on record: USDOT 1389230 USDOT 3954209 USDOT 1575579 USDOT 2748190

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Shared w/ other carriers

Registered and roadside-observed capacity are broadly consistent.

Explore the carrier network & VIN cross-links

Identity & contact

FMCSA census + L&I dossier

Location

Physical address: 1509 SCHAFFER CT, BREA, CA, 92821
Operation: Interstate

Contact

Phone: (619) 751-7749
Email: nasesora@gmail.com

Registration

Officer: Kiyoung Yun
USDOT / docket: 3911936 · MC-1444344
First registered: Jul 5, 2022
Last MCS-150: Aug 13, 2025 · 40,000 mi (2024)
FMCSA safety rating: Not rated
Recordable crash rate: 0.00
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

40,000

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

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Verification summaryAuthority, insurance, safety and identity facts for KIYOUNG YUN.

KIYOUNG YUN (USDOT 3911936) has a Vektor safety score of 74/100 and a Review before loading verdict, from the carrier's FMCSA record refreshed Jun 30, 2026.

The carrier holds active common for-hire operating authority per FMCSA L&I as of Jun 30, 2026.

It has an active BIPD insurance filing with a $750,000 limit in force from HYUNDAI MARINE & FIRE INS CO LTD (US BRANCH) effective Aug 10, 2025 in FMCSA L&I's current snapshot as of Jun 30, 2026.

Its vehicle out-of-service rate was 75.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 30, 2026.

The carrier received 4 roadside inspections in the last 24 months — 4 vehicle-level and 4 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jun 30, 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 Jun 30, 2026.

It reports 1 power unit and 1 driver in its most recent MCS-150 filing dated Aug 13, 2025.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 30, 2026.

Frequently asked

What is KIYOUNG YUN's USDOT number?

KIYOUNG YUN's USDOT number is 3911936, and its motor carrier number is MC-1444344.

Is KIYOUNG YUN authorized to operate?

As of Jun 30, 2026, KIYOUNG YUN is active in the FMCSA register with common, contract, broker operating authority on file.

What is KIYOUNG YUN's safety record?

KIYOUNG YUN has a 75.0% vehicle out-of-service rate (national average 22.26%) across 8 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 74/100 (tier: review).