Diffco LLC
Phone (713) 489-5297Tomball, TX
Find this carrier by: Diffco · USDOT 2340317 · MC 799126 · 713-489-5297 · 7134895297 · Tomball, TX
Carrier information from FMCSA records. See dates and record coverage. How to verify an FMCSA record.
- USDOT
- USDOT2340317
- MC
- 799126
- Registered
- 2012 · 14 yrs
- Location
- Tomball, TX
- MCS-150 filed
- Aug 27, 2025
USDOT registration
Active
Registration status; not operating authority
Authority record
Listed active
Common carrier, Contract carrier; verify in Motus
Insurance record
$750,000
Stored BIPD filing
Safety rating
Not rated
No safety rating available; not a safety verdict
Overview
The short version and the key numbers.
Diffco LLC is an active motor carrier based in Tomball, TX, registered with FMCSA under USDOT 2340317 and MC 799126. Phone: (713) 489-5297. It reports 4 power units and 2 drivers on its MCS-150 (Aug 27, 2025). In the last 24 months it had 1 roadside inspection, a 0% vehicle out-of-service rate (national average 22.9%) and no reportable crashes in the available records.
USDOT 2340317 was first registered with FMCSA on Sep 6, 2012 (14 years ago), and its most recent MCS-150 filing is dated Aug 27, 2025. The last insurance cancellation on file (BIPD/Primary with The Charter Oak Fire Insurance Co.) took effect Sep 7, 2021, recorded as "TERM/REPL". Its vehicles were inspected 1 time on record, most recently on Dec 16, 2024, most often in TX.
Equipment on record
VIN = decoded from the carrier's vehicles · Inspection = seen at roadside inspections · MCS-150 = filed by the carrier
Dates behind this profile
- MCS-150 filing
- Aug 27, 2025
- Registration record changed
- Oct 24, 2026
- Latest inspection recorded
- Dec 16, 2024
- Latest crash recorded
- Not available
- Latest vehicle observation
- Dec 16, 2024
Each date applies to its own record. A registration change does not mean every filing changed. An inspection or vehicle observation describes that date, not continuous operation today.
USDOT registration and operating authority are different records. A crash entry records involvement, not a finding of fault. Missing information is not a clean safety record.
Company details
Filed identity, officers, contacts and registration details.
Company identity & officers
- Company officer
- Matthew Diffendal
- Legal name
- Diffco LLC
- Classification
- Private (Property) · Authorized For-Hire
- Registered as
- Motor Carrier
Registration & filings
- USDOT number
- 2340317
- Docket numbers
- MC 799126 (active)
- Registered
- Sep 6, 2012 (14 yrs)
- Last MCS-150
- Aug 27, 2025
- Usual MCS-150 schedule
- July 2027 (see temporary relief below)
- Operation
- Intrastate Only (Non-Hazmat)
- Hazmat, as filed
- No
- Passenger carrier, as filed
- Not available
FMCSA currently provides additional time for biennial updates due on or after June 1, 2026 and suspends USDOT inactivation for those missed updates. The usual schedule above does not establish a violation. Read our update guide and the cited FMCSA notice (guidance checked October 20, 2026).
Carriers in Tomball, TX
- USDOT registrations in Tomball
- 969
- Currently active
- 541 (56%)
- One-truck operations
- 678 (70%)
- With for-hire authority
- 543 (56%)
- Registered in the last 12 months
- 56
From FMCSA census records as of Nov 6, 2026. This carrier reports 4 power units against a local average of 2.7.
Find this carrier by
- USDOT
- 2340317
- Docket numbers
- MC 799126
- Phone
- (713) 489-5297713-489-52977134895297
- Fax
- (281) 764-8662281-764-86622817648662
- matt.diffendal@diffcollc.com
- Officers
- Matthew Diffendal
- Legal name
- Diffco LLC
- Address
- 22502 Kobs Road, Tomball, TX 77377
- Mailing address
- PO Box 178, Cypress, TX 77410
- VINs inspected under this USDOT
- 1LH440WH3G1A22535, 1XPBD79X6HD421309
Available registration and contact identifiers. Vehicle identifiers below are a recent sample; open a VIN or plate to see its dated records.
Legitimacy check
A quick screen from public records. A flag is a reason to verify, not proof of wrongdoing.
- Pass: Not on the U.S. sanctions list
Name does not match the Treasury OFAC list.
- Pass: USDOT registration is active
FMCSA lists USDOT 2340317 as active.
- Check: Verify current operating authority
Stored legacy record lists Common carrier, Contract carrier as active; confirm the current status in Motus.
- Check: Verify current insurance
Stored BIPD amount: $750,000. Check Motus filings and confirm coverage with the insurer.
- Pass: No federal out-of-service orders
None on record for this USDOT.
- Pass: No prior revocation linked
No earlier revoked USDOT is linked to this one.
Connected companies
Other USDOT numbers that share an officer, phone or address with this carrier. A match is a lead to check, not proof.
- Red Hill Trucks & TrailersUSDOT 4535102 · Tomball, TXSame officerSame addressActiveLikely same owner
- Red White & Blue Fuels LLCUSDOT 4101088 · Tomball, TXSame addressActivePossible link
Matched on FMCSA filings: company officer names, phone and physical address. Large fleets and shared office buildings can match by chance.
Authority & insurance
Stored filing details and guidance for checking current status.
FMCSA filing records
Authority, insurance and notice records can include earlier filings. Read each recorded status and effective date; a filing alone does not confirm current authority or insurance coverage. Missing records do not establish unauthorized operation or missing insurance.
Amounts are shown exactly as filed, without scaling or currency conversion. Confirm coverage and amounts with the insurer.
Operating authority
0 available records · FMCSA release date: Nov 6, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance filings
0 available records · FMCSA release date: Nov 6, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Suspension and revocation notices
0 available records · FMCSA release date: Nov 6, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance history
0 available records · FMCSA release date: Nov 6, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Earlier FMCSA filing records
These records may omit later filings. Their presence does not establish current authority or coverage. Missing records do not establish that a carrier is unauthorized or uninsured. Check current records in FMCSA Motus, then confirm coverage directly with the insurer. Follow the verification guide and its FMCSA sources. Guidance checked October 20, 2026.
Stored operating authority
| Authority type | Recorded status | Application pending | Revocation pending |
|---|---|---|---|
| Common | Active | None | None |
| Contract | Active | None | None |
| Broker | None | None | None |
Recorded categories and dockets
- MC 799126
- Active
Stored insurance filing fields
- Liability (BIPD)
- $750,000
- Cargo
- Not on file
- Bond / trust
- Not on file
Insurance filings
| Type | Insurer | Form | Policy | Coverage | Effective |
|---|---|---|---|---|---|
| Liability (BIPD) | Zurich American Insurance Company | 91X | BAP 3757169 | $750,000 | Sep 7, 2021 |
Insurance history
| Type | Insurer | Policy | Effective | Cancelled | How it ended |
|---|---|---|---|---|---|
| BIPD/Primary | The Charter Oak Fire Insurance Co. | BA-5A715905-12-CNS | Sep 7, 2012 | Sep 7, 2021 | Replaced (TERM/REPL) |
"On file" means FMCSA received the filing. It does not confirm the policy is active today.
Safety
FMCSA's rating and how this carrier compares with the national average.
Safety rating
- Rating
- Not rated
- Driver inspections (24 mo)
- 1 (0 out of service)
- Vehicle inspections (24 mo)
- 1 (0 out of service)
Out-of-service rates (24 months)
FMCSA BASICs
| Category | Percentile | Measure | Inspections with violation | Acute / critical | Alert |
|---|---|---|---|---|---|
| Unsafe Driving | Not public | 0 | 0 | No | Not available |
| Hours-of-Service | Not public | 0 | 0 | No | Not available |
| Driver Fitness | Not public | 0 | 0 | No | Not available |
| Controlled Substances | Not public | 0 | 0 | No | Not available |
| Vehicle Maintenance | Not public | 11 | 1 | No | Not available |
Percentile: 0 is best, 100 is worst. FMCSA flags an alert above its threshold (65–80% depending on category). Some property-carrier percentiles are not public.
Most-cited violations, in plain English
| Code | Times | Out of service |
|---|---|---|
| 393.11LR | 1 | 0 |
| 393.55C1 | 1 | 0 |
| 393.55C2 | 1 | 0 |
Inspections & crashes
Roadside inspections and reportable crashes in the last 24 months.
Inspection, violation and out-of-service counts: FMCSA 24-month inspection record, as of Nov 6, 2026.
Most recent
- Last inspection
- Dec 16, 2024
Latest inspections
| Date | Inspection ID | State | Location | Level | Driver viol. / OOS | Vehicle viol. / OOS | Violations |
|---|---|---|---|---|---|---|---|
| Dec 16, 2024 | 83500086 | TX | Sh-0249 In Harris Co. (450-470 | Walk-around (Level 2) | 0 / 0 | 3 / 0 | 3 violations
|
Latest crashes
A roadside out-of-service finding applies to the inspected driver or vehicle; it is different from a federal order against the carrier. Crash involvement does not determine fault or preventability. Counts cover the stated reporting period, not the carrier’s entire history.
Where its vehicles were inspected
| State | Inspections | With OOS |
|---|---|---|
| TX · Texas | 1 | 0 |
The states where FMCSA recorded roadside inspections for this USDOT. A rough picture of where the fleet runs, not a list of lanes.
Fleet & drivers
Filed fleet and driver counts, cargo types, and vehicles observed at inspections.
Vehicles filed on the MCS-150
| Vehicle | Owned | Term leased | Trip leased |
|---|---|---|---|
| Tractors | 4 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
Drivers
- Total drivers
- 2
- CDL drivers
- 2
- Interstate, over 100 mi
- 0
- Interstate, within 100 mi
- 0
- Intrastate, over 100 mi
- 0
- Intrastate, within 100 mi
- 2
- Leased drivers / month
- Not available
Operations
- Power units
- 4
- Trucks
- 4
- Buses
- 0
- Annual miles
- 60,000 (2024)
- Seen at inspections
- 1 truck · 1 trailer
Vehicles inspected under this USDOT
| VIN | Year | Make & model | Type | Plate | Inspections | Last seen | Violations / OOS |
|---|---|---|---|---|---|---|---|
| 1LH440WH3G1A22535 | 2016 | Landoll Corporation Landoll Corporation | Semi-Trailer | 075C197 TX | 1 | Dec 16, 2024 | 0 / 0 |
| 1XPBD79X6HD421309 | 2017 | Peterbilt 579 | Truck Tractor | 1M79673 TX | 1 | Dec 16, 2024 | 3 / 0 |
Vehicles recorded at roadside inspections under this USDOT (the carrier operated them; this is not a record of ownership). Open a VIN or plate for its dated carrier associations and available history. Plates can change or be reassigned. Vehicle details reflect filed records and available VIN decoding; these observations are not a complete fleet or ownership history.
Equipment evidence
- Tractor-TrailerInspection 1 truck tractor and 1 semi-trailer recorded at roadside inspections (trailer body type not decoded)
Cargo carried, as filed
Changes & history
Dated changes, earlier values and filing history for this registration.
Timeline of this registration
- MCS-150 filing on record.
- First vehicle recorded at a roadside inspection under this USDOT.
- Most recent vehicle recorded at a roadside inspection.
- Earliest roadside inspection on file.
- Most recent roadside inspection on file.
- Insurance cancelled: BIPD/Primary with The Charter Oak Fire Insurance Co. (MC799126) — TERM/REPL.
- Insurance filed: BIPD/Primary with The Charter Oak Fire Insurance Co. (MC799126).
- Registered with FMCSA as USDOT 2340317.
Dates come from FMCSA filings and inspection records as filed; a filing date is when FMCSA recorded it, not when an event happened on the road.
MCS-150 filings on record
- MCS-150 filed
Registration
- First registered with FMCSA
- Sep 6, 2012
- Last MCS-150 update
- Aug 27, 2025
Questions & answers
Quick answers, written from this carrier's FMCSA record.
Is Diffco LLC an active carrier?
The available FMCSA record lists USDOT 2340317 as active. Registration is separate from operating authority and insurance coverage.
What is Diffco LLC's USDOT and MC number?
USDOT 2340317; docket number MC 799126.
How do I contact Diffco LLC?
As filed with FMCSA: phone (713) 489-5297; fax (281) 764-8662; email matt.diffendal@diffcollc.com; address 22502 Kobs Road, Tomball, TX 77377; mailing address PO Box 178, Cypress, TX 77410.
What insurance does this record show for Diffco LLC?
The stored legacy record shows $750,000 liability (BIPD). This does not establish current coverage or uninsured status. Check current filings in FMCSA Motus and confirm coverage with the insurer.
What is Diffco LLC's safety rating?
No FMCSA safety rating is available here. Not rated does not mean safe or unsafe.
How many trucks and drivers does Diffco LLC have?
Power units: 4; drivers: 2, as filed on its MCS-150 (Aug 27, 2025).
What does Diffco LLC haul?
Its FMCSA filing lists these cargo types: building materials, machinery (large), intermodal containers, construction.
What equipment does Diffco LLC operate?
On government records: Tractor-Trailer (1 truck tractor and 1 semi-trailer recorded at roadside inspections (trailer body type not decoded)).
How many inspections and crashes has Diffco LLC had?
Inspections: 1; crashes recorded: 0, in the available 24-month records.
What is the usual MCS-150 update schedule for Diffco LLC?
The usual USDOT-digit schedule gives July 2027. The latest filing stored here is Aug 27, 2025. FMCSA currently gives extra time for biennial updates due on or after June 1, 2026 and has suspended inactivation for those missed updates. This calculated date is not a finding of noncompliance. Check the linked FMCSA notice for changes.
Reviews
From brokers, shippers and drivers who worked with this carrier.