Your registration number is on your physical registration card and your vehicle's license plate

Your vehicle registration number — also called a registration plate number, license plate number, or plate number — is the combination of letters and numbers on the metal plate bolted to the front and back of your vehicle. It is also printed on your registration card, the document you keep in your vehicle or at home.

The registration number is not the same as your Vehicle Identification Number (VIN), which is a 17-character code stamped into your vehicle's frame. You will need the registration number when you renew your registration, file an insurance claim, report a stolen vehicle, or respond to a traffic ticket.

Key Takeaways

  • Your registration number appears on the metal license plate on your vehicle's front and rear bumpers.
  • The same number is printed on your physical registration card, usually in the upper right corner or near the vehicle description.
  • If you have lost your registration card, you can request a replacement from your state's Department of Motor Vehicles.
  • Your registration number is different from your VIN, which is a longer code found on your dashboard or vehicle frame.
  • You will need your registration number for renewals, insurance claims, and any official vehicle-related correspondence.

Finding the number on your license plate

Walk to the front or back of your vehicle and look at the metal plate. The registration number is the entire combination of letters and numbers on that plate — for example, ABC1234 or 5XYZ789. Every state uses a different format, but the number is always visible and permanent.

If your plate is damaged, obscured by dirt, or missing, you can still find the number on your registration card. If the plate itself is missing or stolen, contact your state's Department of Motor Vehicles to report it and request a replacement.

Finding the number on your registration card

Open your vehicle registration card — the physical document you received from your state's Department of Motor Vehicles when you registered your vehicle. The registration number is usually printed in the upper right corner of the card or near the section that describes your vehicle (make, model, year, color, VIN).

The card will also show your name, address, the vehicle owner's name if different from yours, and the expiration date of your registration. Keep this card in your vehicle at all times; it is required by law in most states and you must show it to a police officer if you are stopped.

What to do if you cannot find your registration card

If you have lost your registration card or it is too worn to read, contact your state's Department of Motor Vehicles directly. You can usually request a replacement card online, by mail, or in person at a local DMV office. The process typically takes one to two weeks, though some states offer expedited replacements for a higher fee.

When you contact the DMV, have your driver's license and VIN ready — you can find your VIN on your insurance documents or by looking at the dashboard on the driver's side of your windshield. The DMV will verify your identity and vehicle ownership, then mail you a new registration card with your registration number printed on it.

Understanding the difference between registration number and VIN

Your registration number is the short code on your license plate (usually 5 to 8 characters). Your VIN is a 17-character code that identifies your specific vehicle and is used by manufacturers, insurers, and law enforcement to track recalls, ownership history, and accident records.

You will see your VIN on your registration card, insurance documents, and vehicle title. It is also stamped into the metal on your dashboard (visible through the windshield from outside the vehicle) and on the driver's side door frame. For most everyday purposes — renewing registration, updating insurance, or responding to a ticket — you need your registration number, not your VIN.

Why you need your registration number and where to use it

Your registration number is required when you renew your vehicle registration, file an insurance claim after an accident, report a stolen or damaged vehicle to police, or respond to a traffic citation. Insurance companies use it to pull up your policy and claims history. Law enforcement uses it to look up your registration status and vehicle owner information.

If you are buying or selling a vehicle, you will also need your registration number to transfer the title and update the registration with the new owner's information. Keep a photo of your registration card or a written copy of the number in a safe place so you can find it quickly if you need it.

Frequently Asked Questions

Is my registration number the same as my license plate number?

Yes. The registration number and license plate number are the same thing — the combination of letters and numbers on your vehicle's metal plate. Your registration card will have this same number printed on it.

Can I look up my registration number online?

Most states do not allow you to look up your own registration number through a public online portal. However, if you have an online account with your state's DMV, you may be able to view your registration details, including the number. Contact your state DMV for instructions on setting up an account.

What if my license plate has been changed or replaced?

If you requested a new plate from your DMV, your registration number will have changed. Your new registration card will show the new number. If your plate was damaged or stolen and you received a replacement with the same number, your registration number stays the same.

Do I need my registration number to renew my registration?

Most renewal notices from your DMV will include your registration number, so you can straightforward refer to that notice. If you have lost the notice, you can provide your VIN or driver's license number instead, and the DMV will look up your registration number in their system.

Where is the registration number on a motorcycle or trailer?

Motorcycles and trailers have license plates just like cars and trucks, with the registration number displayed on the plate. The registration card for a motorcycle or trailer works the same way as a car — the number appears on the card and on the plate.