How do you verify a carrier MC number?

To verify a carrier MC number, look it up on the FMCSA SAFER Company Snapshot and in Motus, FMCSA's registration system. Confirm the USDOT status is active, the operating authority is granted, insurance is on file, and the name, address and phone match what the carrier gave you. Then recheck before each load.

What an MC number proves, and what it does not

An MC number is the docket number FMCSA assigns when a for-hire carrier is granted operating authority. It tells you the carrier is registered. It does not tell you the person emailing you works for that carrier.

Think of the MC number as a starting point. It answers one question: does this carrier exist in the federal record? You still have to answer a second one: is the person on the other end of this load really that carrier?

That gap is where most carrier fraud lives. Criminals impersonate real carriers or buy dormant authority with a clean history. So verification has two parts: check the record, then check that the contact matches the record.

Step by step: verify an MC number with public FMCSA tools

Everything below is free and needs no login.

1. Open the SAFER Company Snapshot at safer.fmcsa.dot.gov. Search by MC number, USDOT number, or name.
2. Check the USDOT status. It should read active. Confirm the operating authority line shows the carrier is authorized for the freight you are tendering.
3. Match the identity fields: legal name, physical address, mailing address, and phone number. Compare each one to the carrier packet and the person who contacted you.
4. Look at the MCS-150 form date. It shows when the carrier last updated its registration. An old date is not proof of a problem, but a very recent update on an established carrier deserves a question.
5. Open Motus at motus.dot.gov. FMCSA's Company Snapshot points you there for insurance and licensing details. Confirm insurance filings are on file and read the authority history for each authority granted.
6. Check the out-of-service date field on the snapshot. A carrier with an out-of-service date should not be moving your freight until you understand why.
7. Save a copy or note of what you checked and when, so the carrier file shows your diligence if something goes wrong later.

A note on Motus and the old Licensing and Insurance system

FMCSA retired its legacy registration functions on May 14, 2026 and moved to Motus. The old Licensing and Insurance (L&I) public pages now carry a notice about the change.

One result is that data is split. Filings and authority activity before May 14 sit in the legacy records. Activity after that date lives in Motus. If a record looks thin or missing, check both before you draw a conclusion.

Red flags that should slow you down

A clean snapshot is the start. These are the patterns worth stopping on:

• Newly granted authority with no operating history, or authority that was just reinstated after being inactive or revoked.
• Recent changes to the carrier's registration, such as a new address, phone number, or company name, especially right before they start asking for loads.
• Frequent insurer changes, which can point to financial or compliance trouble.
• An email domain that does not match the carrier. Fraudsters use typo-squatted domains and free webmail, and a lookalike domain can differ from the real one by a single character.
• A phone number or contact that does not match the number on the FMCSA record.
• A request to change payment or banking details, or pressure to skip the normal paperwork and onboard fast.

Why checking once at setup is not enough

Authority can lapse. Insurance can be cancelled. Contact details can change. A carrier that passed onboarding six months ago may not be the same carrier today.

Fraud also targets the moment of the transaction, not just onboarding. A carrier can pass every initial check while the specific person booking a load, or asking you to change where you send payment, is not who they claim to be. Industry vetting experts now stress that onboarding checks and transaction checks matter equally.

Verisk CargoNet has also reported criminals compromising carrier email accounts, phone systems, and compliance-platform accounts. In that case the contact details look real because the account is real. A change request is the signal, not the sender's address.

Make rechecks routine

Build a short rule set. Recheck status, authority, and insurance before you tender each load. Confirm any change to payment details by calling the carrier on the phone number from the FMCSA record, not the number in the email.

Keep the rules written down so every dispatcher and rep follows them the same way. Fraud works best on a team where each person improvises. Decide in advance who may approve a payment change, which call-back number counts, and what happens when a record does not match.

Doing this by hand across every inbound email is slow. Clyde Shield runs a live FMCSA check on every carrier email, flags lookalike domains, and freezes payment-detail changes until a person confirms with the carrier.