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MC Number Lookup: How to Find and Verify a Carrier’s MC Number

Updated Oct 26, 2026 · General information, not legal advice. Confirm requirements on the official FMCSA source.

For an MC number lookup, enter the docket in FMCSA’s SAFER Company Snapshot ↗ to find its company and USDOT number, then check the relevant authority in Motus. Confirm that the authority belongs to the company performing the service. A business can have several dockets, and an active USDOT record alone does not mean that each authority is active.

What an MC number means

An MC number is a Motor Carrier docket number associated with operating authority. You will commonly see MC dockets for for-hire carriers and brokers. FF identifies freight forwarder authority, while MX applies to certain Mexico-domiciled carrier registrations. The prefix tells you the kind of docket; to see what the company may do now, read the authority type and current status on its record.

Interstate for-hire carriers and brokers generally need the appropriate operating authority where FMCSA’s requirements apply. Some operations, including certain private-carrier and exempt-commodity operations, are exempt. Check FMCSA’s authority guidance for the service, cargo, and geography involved rather than assuming every company with a USDOT number needs the same registration. That determines which authority you need to verify before booking. (FMCSA authority FAQ) ↗

The move to Motus did not change existing USDOT or docket numbers, according to FMCSA. Newly granted authorities receive separate dockets, while several existing authority types keep sharing one docket. MC, FF, and MX prefixes remain in use, but new USDOT and docket numbers are now randomized, so a number’s size no longer shows how new a company is. Seeing more than one registration is a prompt to read the authority records, not a reason to infer permission from the numbers. (FMCSA registration guidance) ↗

MC number vs. USDOT number

IdentifierWhat it identifiesWhat to verify
USDOT numberFMCSA’s unique identifier for a regulated entity’s registration and safety recordCompany identity, USDOT status, safety information, and related registrations
MC docket numberA particular type of interstate operating authority, commonly described as MC authorityThe authority type, current status, and whether it belongs to the company performing the service

One USDOT record may have several dockets, while some registered entities need no MC authority. Check the registration required for the company’s role in the transaction.

How to look up an MC number

  1. Open the SAFER Company Snapshot ↗.
  2. Select the MC/MX search option and enter the docket number as directed by the form.
  3. From the result, note the USDOT number, legal name, address, and authority listed. You will use these details to match the company in Motus.
  4. Open the company’s Motus record. SAFER’s Licensing & Insurance link goes straight to it, or you can search the USDOT number or the beginning of the legal or DBA name in Motus public search ↗.
  5. Expand “Operating Authority Registration(s)” and select the relevant authority. Read “Current Status” and “Status Reason,” then open the “Insurance Details” tab, checking the named company against the transaction documents.
  6. If the expected record is missing or the company details conflict, confirm the result with FMCSA or a verified company contact before booking. Keep the lookup date and response.

An older FMCSA page may send you to L&I, which now keeps only historical records. For activity after May 18, 2026, FMCSA directs users to Motus. (FMCSA filing guidance) ↗ (FMCSA transition bulletin) ↗

HaulerCheck’s carrier lookup also accepts an MC number. The TNT Crane & Rigging sample report shows how a docket appears alongside its USDOT record. Read the source dates, then confirm current authority in Motus. If you know the location but are unsure of the company name, the state directory can help narrow your search.

Why one MC number can appear with two companies

Two results carrying the same docket do not mean that both companies hold the authority. Changed company information, similar names, or retained associations in public datasets may need a closer review. FMCSA’s explanation that legacy authority types can share a docket concerns authority records. It does not allow two unrelated legal entities to share a USDOT identity. (FMCSA registration guidance) ↗

Compare the USDOT numbers and read the legal names, addresses, and filings. A name change or corporate transaction can affect registration differently depending on which legal entity continues operating. FMCSA says a USDOT number belongs to its assigned legal person; another business cannot simply buy or borrow it. An LLC/Inc difference therefore needs an explanation rather than an assumption that the records are interchangeable. (FMCSA registration bulletin) ↗

Here is a real example. MC455523 appears on the record of A D Transport Express Inc (USDOT 296052), but FMCSA files its authority and insurance under A D Express Inc (USDOT 1124232). The report marks the docket “other record” and does not count those filings as the first company’s. Follow the linked FMCSA record to see which company holds the filing; picking the closest name would leave the mismatch unresolved.

HaulerCheck report for A D Transport Express Inc with the other-record docket MC455523 marked in three places
The HaulerCheck report for A D Transport Express Inc: (1) MC455523 is marked “other record,” (2) the summary explains that FMCSA files it under USDOT 1124232, and (3) the authority card leaves it out of this company’s authority. Report of October 22, 2026.

What active, inactive, and pending mean

Look at the authority required for the job. A company can have an active USDOT identifier without the operating authority needed for a particular for-hire interstate service, so check which registration a general “active” label describes.

A pending application has not reached a final status and is not a grant of authority. An inactive USDOT record describes the identifier’s status; an authority may separately be suspended or revoked. Open the authority details to read the exact status and reason instead of interpreting a label in isolation. (FMCSA Motus job aid) ↗

Label or conditionWhat to verify before booking
Authorized or active authorityThe exact authority type is granted and current for the company performing the service.
Inactive USDOT recordResolve the identifier’s status; do not substitute another company’s active number.
Pending applicationFind out which application is pending and whether the service requires that ungranted authority.

For example, an established carrier could be applying for another authority. That pending application does not describe the status of every registration already on its account. The reverse also matters: active carrier authority is not broker authority. Check the registration that matches what the business will do in the transaction: arrange the transportation or perform it.

For a broker MC number lookup, check broker authority and the required financial-security filing. As of October 22, 2026, 49 CFR 387.307 requires a property broker to maintain a $75,000 surety bond or trust fund, evidenced by Form BMC-84 or BMC-85. A carrier liability filing serves a different purpose and does not qualify a broker. (49 CFR 387.307) ↗

Verification checklist before booking

  • Does the USDOT number resolve to the carrier’s legal name or documented DBA?
  • Does the MC number appear on that same company record or is it associated with another USDOT number?
  • Is the specific authority needed for the shipment active in Motus?
  • Do the insurance filings show the required status and effective information?
  • Does the certificate of insurance identify the correct company and appropriate coverages?
  • Does the phone number match the official record, and have you called a known number to confirm any recent changes?
  • Do the carrier name, truck, driver, and pickup information match your company’s onboarding process?
  • Did you record the lookup date and investigate any different status shown by SAFER or another service?

A genuine docket can still appear in a fake rate confirmation. Confirm the contact and equipment through the channels required by your onboarding process before releasing freight.

Our How to Look Up a DOT Number guide covers finding and matching the company record. If you need to apply for new or additional authority, see our guide on how to get an MC number and FMCSA’s current Motus registration instructions ↗.

Frequently asked questions

How can I check an MC number for free?

Use the free SAFER Company Snapshot, which accepts MC/MX searches, or HaulerCheck’s search. After finding the USDOT record, check current authority in Motus.

Is an MC number the same as a USDOT number?

No. A USDOT number identifies the regulated entity’s FMCSA record. An MC docket is associated with operating authority.

Can one company have more than one MC number?

Yes. A company may hold multiple authority types or legacy dockets. Read the status and authority type for each number relevant to the service.

Does an active MC number prove the caller is the carrier?

No. Use a contact already on the official record to confirm who is speaking for the carrier and what shipment they are handling.

Where should I check current MC authority in 2026?

Check Motus for the current authority record. SAFER can find the USDOT number from an MC number, links to the Motus record, and provides the company’s safety snapshot.

Official sources

Checked October 22, 2026.

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