ADDT CORP
AUTHORIZEDUSDOT
4137437
MC Number
1634055
Fleet Size
4
Total Drivers
4
FMCSA-derived snapshot updated: October 25, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
Broker verification report
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Safety overview
ADDT CORP is a small interstate motor carrier based in SIGNAL HILL, California, operating 4 power units with 4 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 14.3% runs above the national average of 6.7%. The current imported FMCSA crash snapshot returned no matching crash rows for this carrier; this is not proof that no crash occurred. FMCSA records show 23 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in California is 9.5% and the average vehicle OOS rate is 23.0% across 325,869 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
23
Total
51%
Driver %
Insurance on file
Liability (BIPD)
HYUNDAI MARINE & FIRE INS CO LTD (US BRANCH) — eff. Sep 13, 2025
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: Legacy FMCSA. Verify current filings directly with FMCSA before relying on them.
Crash history
0
Total Crashes
Similar carriers in California
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Frequently asked questions
Is ADDT CORP authorized to operate?
CarrierOwl's FMCSA-derived snapshot for ADDT CORP (USDOT #4137437) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is ADDT CORP's safety record?
ADDT CORP has 23 inspections in CarrierOwl's current imported snapshot; the snapshot returned no matching crash rows. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does ADDT CORP operate?
ADDT CORP operates 4 power units with 4 drivers on file. That makes them a small carrier.
Does ADDT CORP transport hazardous materials?
No. ADDT CORP does not have a hazardous materials flag in the FMCSA database.
Where is ADDT CORP located?
ADDT CORP is based in SIGNAL HILL, California at 2520 CHERRY AVE, 90755. Phone: (657) 655-9779.
What are ADDT CORP's out-of-service rates?
ADDT CORP's driver out-of-service rate is 14.3%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 10.0%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.