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CORNERSTONE CARRIERS INC

USDOT 3589086 · MC1215009 · Ontario, CA

CORNERSTONE CARRIERS INC

USDOT 3589086 · MC1215009 · Ontario, CA  ·  Underwriter-grade risk snapshot

Operating statusActive
Lead priorityUnknown
Fleet4 power units · 4 drivers (4 trucks)
OperationA · AUTHORIZED FOR HIRE
Current insurer—
Crashes / Inspections (24 mo)0 / 4

Out-of-Service Rates

VehicleDriver
This carrier 25.0% (1/4) 25.0% (1/4)
National average22.3%6.7%

⚠️ Above national average. Carriers with high OOS rates face premium surcharges and are more likely to shop for new insurance.

Contact

Address1728 N DEL NORTE AVE
ONTARIO CA 91764
Phone🔒 Subscribe to reveal
Email🔒 Subscribe to reveal

Fleet & mileage

Power units4
Drivers4 (4 CDL)
MCS-150 mileage80,000 (2023)
MCS-150 filedFeb 19, 2025
HazmatN
Cargogeneral freight

Insurance history

InsurerPolicy #EffectiveCancelled
SOUTHLAKE SPECIALTY INSURANCE COMPANYTMA81002756 Dec 11, 2024Apr 24, 2025
LANCER INSURANCE COMPANYCM0075748 Nov 19, 2024Dec 11, 2024
LANCER INSURANCE COMPANYCM0075748 May 8, 2024Nov 19, 2024
LANCER INSURANCE COMPANYCM0075748 Aug 3, 2023May 8, 2024
LANCER INSURANCE COMPANYCM0075748 Aug 3, 2022Aug 3, 2023
SECURITY NATIONAL INSURANCE CO.SMC1800871 Aug 3, 2021Aug 9, 2022
SECURITY NATIONAL INSURANCE CO.SMC1800871 Aug 3, 2021Aug 3, 2022
SECURITY NATIONAL INSURANCE CO.SMC1800871 Aug 3, 2021Aug 3, 2021

Operating authority

DocketStatusPending
MC1215009 Common Inactive
Contract None
Broker None		 —

Inspections & violations

Total inspections4
Out-of-service5
Vehicle OOS rate100.0%
Driver OOS rate25.0%
Total violations3
OOS violations0

Crashes

Total crashes0
Fatal crashes0
Injuries0

Safety measurement (BASIC)

CategoryMeasureStatus
Unsafe Driving0OK
Hours of Service1.75OK
Driver Fitness0OK
Controlled Substances0OK
Vehicle Maintenance7OK
Insurance agent? CORNERSTONE CARRIERS INC — get the full CA lead list.

Data as of Thu Oct 15 2026 00:00:00 GMT+0000 (Coordinated Universal Time). Source: FMCSA public filings, refreshed daily by Insight Carrier.