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USDOT 567034Active

Frontier

Legal name: Citizens Telecommunications Company Of California INC

Frontier's DOT number is USDOT 567034.

Needs attention

1 item to check

Based in

Camarillo, CA

Power units

506

Drivers

374

Operation

Interstate

Watch Frontier for free

Next MCS-150 due: Apr 30, 2027

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Compliance check

From the FMCSA census and inspection files, checked Oct 20, 2026.

  • USDOT number status

    OK

    Active in the FMCSA census.

  • MCS-150 biennial update

    OK

    Next due Apr 30, 2027. Last filed Dec 29, 2025.

  • Safety rating

    Info

    Not rated. Most carriers are unrated until a compliance review.

  • Out-of-service rate (24 months)

    Check

    Vehicle 25.9% vs 22.26% national, driver 2.9% vs 6.67% national, across 35 inspections.

  • UCR registration 2027

    Info

    Interstate carriers must register with UCR every year. 2027 registration is open now. Estimated fee for 506 power units: $5,548 (bracket 5).

Roadside inspections, last 24 months

TypeInspectionsOut of serviceOOS rateNational avg
Vehicle27725.9%22.26%
Driver3512.9%6.67%

35 inspections and 61 violations since Oct 20, 2024. Last inspection Sep 18, 2026. National averages are FMCSA-published approximations.

Registration details

Legal name
Citizens Telecommunications Company Of California INC
DBA
Frontier
Classification
private property
CDL drivers
35
MCS-150 last filed
Dec 29, 2025
Reported mileage
27,829,590 (2025)
Added to FMCSA
Jun 22, 1994
Safety rating
Not rated

Source: FMCSA Motor Carrier Census and Vehicle Inspection File (data.transportation.gov), public records. Contact details are intentionally not shown. MyDotCheck is an independent service and is not affiliated with, endorsed by, or part of the U.S. Department of Transportation or FMCSA. Data comes from public FMCSA datasets and may lag official records by a day or more. Government filings can be made directly with FMCSA at no charge.