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James Zwack Builders Llc (DOT# 1645256) – FMCSA Carrier Profile

DOT# 1645256● Active
Updated monthly · 2026-03-09

This carrier is active. Review the inspection and crash data below.

James Zwack Builders Llc is a registered motor carrier with the FMCSA under USDOT number 1645256. The company operates from Kasilof, AK and maintains an active operating status with 2 power units and 1 drivers on record.

Safety Rating

FMCSA Safety Rating
— Not Rated

No formal safety rating has been assigned to James Zwack Builders Llc by the FMCSA. View official FMCSA record →

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Company Information

Address24735 Amber Dr, Kasilof, AK, 99610
Phone(810) 516-1933
Entity TypeAuthorized For Hire
OperationIntrastate (Non-Hazmat)
Power Units2(Small carrier)
Drivers1
MCS-150 FiledMay 16, 2016
Annual Mileage500 mi (2015)
All carriers in Alaska→Carriers in Kasilof, AK→
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Carrier Insight

James Zwack Builders Llc is a small motor carrier operating in Alaska.

James Zwack Builders Llc has not received a formal safety rating from the FMCSA. This is common for smaller or newer carriers and does not necessarily indicate a safety problem.

The company operates 2 power units and employs 1 driver. This is a small carrier operation.

Frequently Asked Questions

What is USDOT Number 1645256?
USDOT number 1645256 is assigned to James Zwack Builders Llc, an active motor carrier registered with the FMCSA, based in Kasilof, AK.
Where is James Zwack Builders Llc located?
James Zwack Builders Llc is headquartered at 24735 Amber Dr, Kasilof, AK 99610.
What does "Not Rated" mean?
"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.
Is zero crashes always a good sign?
Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.
What is a normal OOS rate?
The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.
How often is FMCSA data updated?
FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 1645256 · Last updated: 2026-03-09. View official FMCSA record →