Carrier profile · USDOT 82788 · MC-19416 · Updated Aug 12, 2026

Dun Transportation & Stringing Inc

60 power unitsavg 14.2 yrRegional · 3 statesSHERMAN, TX81/100

CARRIER ACTIVEMC-19416 ACTIVERATED SATISFACTORY

Observed fleet · trailing 24 mo daily

60Power units

35 observed · MCS-150

18Trailers seen

Decoded · vPIC

14.2Avg age (yr)

1997–2022 · vPIC

Call dispatch(903) 891-9660 Email dispatchtyler@duntrans.com

Click to see how we scored it

Load decision · FMCSA snapshot · Aug 12, 2026

Review before loading

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

Watch · 2

Vehicle out-of-service rate above average29.4% vs the 22.26% national average.Fatal crash on record2 crash(es) involving a fatality are on this carrier's record.

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.Established 52 yearsOperating authority has been on file since 1974.

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo29.4%

▲ 22.26% nat'l

Crashes · fatal

5 in 24 mo

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo29.4%

▲ 22.26% nat'l

Crashes · fatal

5 in 24 mo

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

Fleet typeIdentity

Asset-based

60 power units. Brokers price each fleet type apart.

Fleet age vs peersOlder

14.2 yr

Model years 1997–2022 · peer benchmark unavailable.

Identity stabilityStable

52 yr unchanged

Same registration since 1974 — no chameleon / reincarnation signal.

Safety

56 inspections · 24 mo · vs national benchmarks

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

Vehicle OOS 29.4%24-mo cumulative

050%nat'l 22.26%

Driver OOS 5.4%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 51 vehicle and 56 driver inspections over 24 months.

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

36.4% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 22.5 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

56 inspections in the charted months · busiest month Nov '25 · 20

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 60-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 60
Inspections · 24 mo: 56
Annualized: ≈28 / 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.

393.9 Inoperative required lampsVehicle Maintenance53 · 4 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance30 · 0 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving28 · 0 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance24 · 8 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance17 · 5 OOS
393.78 Windshield wipersVehicle Maintenance15 · 0 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance15 · 9 OOS
393.47 Brake actuators / linings / componentsVehicle Maintenance14 · 1 OOS
393.55 Antilock brake system (ABS)Vehicle Maintenance13 · 0 OOS
396.17 Periodic (annual) inspectionVehicle Maintenance12 · 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: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 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

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M 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 ’20 · 8 insurers · 1 lapseCoverage lapse

Gulf’93–’98

Liberty’06–’12

Liberty Fire’14–’20

beyond this history

1993200220112020now

Shorter eras are too brief to label at this scale — all 9 insurers are named in the list below.

BIPD in force — $1,000,000 · ZURICH AMERICAN INSURANCE COMPANY · since Apr 2020

All 9 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
LIBERTY MUTUAL FIRE INSURANCE CO.	Apr 2014 → Apr 2020	$750K	1
VALLEY FORGE INSURANCE CO.	Apr 2012 → Apr 2014	$750K	1
LIBERTY MUTUAL INSURANCE CO.	Apr 2006 → Apr 2012	$750K	1
ZURICH AMERICAN INSURANCE COMPANY	Mar 2004 → May 2006	$750K	1
ST. PAUL FIRE & MARINE INSURANCE CO.	Mar 2003 → Jan 2004	$750K	3
ZURICH AMERICAN INSURANCE COMPANY	Jul 2001 → Mar 2003	$750K	1
SELECT INSURANCE CO.	Aug 1998 → Mar 1999	$750K	1
NATIONAL UNION FIRE INS. CO. OF PITSBGH. PA	Jul 1998 → Jul 2001	$750K	1
GULF INSURANCE CO.	Mar 1993 → Sep 1998	$750K	1

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 60
Observed power (24 mo): 35
Trailers (towed): 18

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

Fleet age· model years · decoded VINs

14.2 yr

Average age

2022

Newest model yr

1997

Oldest model yr

50.7%

VINs decoded

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

Operations & Lanes

Revealed by inspection density across 3 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusRegional

revealed

States observed

US states

Inspections · 24 mo

TX busiest

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

Home base

SHERMAN, TX

304 REYNOLDS LN

Top corridor

TX 54 · MS 1 · LA 1

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 · 5 carriers)

Across all inspections on record: USDOT 4336472 USDOT 1954839 USDOT 2324486 USDOT 2795477 USDOT 2901274

Shares a company officer with other carriers

tyler nunnenkamp — 2 carriers: USDOT 3858492

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

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: 304 REYNOLDS LN, SHERMAN, TX, 75092
Operation: Interstate

Contact

Phone: (903) 891-9660
Fax: (903) 891-9665
Email: tyler@duntrans.com
Web domain: duntrans.com

Registration

Officer: Tyler Nunnenkamp
USDOT / docket: 82788 · MC-19416
First registered: Jun 1, 1974
Last MCS-150: Aug 10, 2026 · 2,315,820 mi (2025)
FMCSA safety rating: Satisfactory · Jun 17, 2011
D-U-N-S: 8946626

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

2,315,820

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 DUN TRANSPORTATION & STRINGING INC.

DUN TRANSPORTATION & STRINGING INC (USDOT 82788) has a Vektor safety score of 81/100 and a Review before loading verdict, from the carrier's FMCSA record refreshed Aug 12, 2026.

The carrier holds active common and contract for-hire operating authority per FMCSA L&I as of Aug 12, 2026.

It has an active BIPD insurance filing with a $1,000,000 limit in force from ZURICH AMERICAN INSURANCE COMPANY effective Apr 1, 2020 in FMCSA L&I's current snapshot as of Aug 12, 2026.

Its vehicle out-of-service rate was 29.4% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Aug 12, 2026.

The carrier received 56 roadside inspections in the last 24 months — 51 vehicle-level and 56 driver-level — across 3 states, according to FMCSA roadside-inspection data refreshed Aug 12, 2026.

The carrier has 5 reportable crashes in the last 24 months and 2 fatal crashes across the full FMCSA crash record available as of Aug 12, 2026.

It reports 60 power units and 30 drivers in its most recent MCS-150 filing dated Aug 10, 2026.

It has an FMCSA safety rating of Satisfactory assigned Jun 17, 2011 in the federal record refreshed Aug 12, 2026.

Frequently asked

What is DUN TRANSPORTATION & STRINGING INC's USDOT number?

DUN TRANSPORTATION & STRINGING INC's USDOT number is 82788, and its motor carrier number is MC-19416.

Is DUN TRANSPORTATION & STRINGING INC authorized to operate?

As of Aug 12, 2026, DUN TRANSPORTATION & STRINGING INC is active in the FMCSA register with common, contract, broker operating authority on file.

What is DUN TRANSPORTATION & STRINGING INC's safety record?

DUN TRANSPORTATION & STRINGING INC has a 29.4% vehicle out-of-service rate (national average 22.26%) across 81 roadside inspections, with 5 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 81/100 (tier: review).

How big is DUN TRANSPORTATION & STRINGING INC's fleet?

DUN TRANSPORTATION & STRINGING INC operates 60 power units and 30 drivers per its most recent MCS-150 filing.

Where is DUN TRANSPORTATION & STRINGING INC based?

DUN TRANSPORTATION & STRINGING INC is based in SHERMAN, TX, with roadside inspections recorded across 3 states.

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