Home › Free tools › USDOT and MC Number Checker
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Clean, validate and de-duplicate trucking USDOT and MC numbers, with one-click links to the official FMCSA records.
The official FMCSA lookup has no key-free browser API, so this tool does the part that works offline: it cleans and validates numbers, and builds the official lookup links. Formats: USDOT is 1 to 8 digits; MC/MX/FF docket numbers are a prefix plus up to 7 digits. A valid format does not mean the carrier exists or is active.
For a weekly feed of newly authorised carriers instead of one-by-one lookups, fmcsa-new-carrier-leads on the Apify Store runs it in bulk and returns structured data. This page is free and stays free: it runs entirely in your browser, makes no network requests, stores nothing and has no tracking.
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