Your vehicle registration number is printed on your registration card and displayed on your license plate
Your vehicle registration number — also called a registration plate number, license plate number, or plate number — is a unique identifier assigned to your vehicle by your state's Department of Motor Vehicles (DMV). It appears in two places you can access right now: on the physical registration card in your vehicle and on the metal or plastic plate mounted on your vehicle's front and rear.
The registration number is not the same as your Vehicle Identification Number (VIN), which is a longer code that identifies the vehicle's make, model, and history. You will need the registration number when renewing your registration, reporting a traffic violation, or providing proof of ownership to a mechanic or insurance company.
Key Takeaways
- Your registration number appears on your registration card (usually kept in your glove compartment) and on your vehicle's license plate.
- The registration number is a short alphanumeric code unique to your vehicle, different from your VIN.
- If you cannot find your registration card, you can request a replacement from your state's DMV online, by mail, or in person.
- Your registration number stays with the vehicle even if you sell it; the new owner will receive their own registration card.
Check your registration card first
Your registration card is a wallet-sized document issued by your state's DMV when you register your vehicle. It lists your name, address, vehicle details, and the registration number prominently at the top or bottom of the card. Most people keep this card in their glove compartment, but it may also be in your vehicle's documentation folder or at home with other important papers.
The card is usually printed on cardstock and may be laminated. Some states issue temporary registration cards that are printed on regular paper; these are valid until your permanent card arrives. If you have recently registered a vehicle or renewed your registration, check your mailbox — the new card may have arrived separately from any renewal notices.
Look at your license plate
Your registration number is displayed on the metal or plastic plate bolted to your vehicle's front bumper and rear bumper. The plate shows the registration number in large characters, usually in a format specific to your state (for example, three letters followed by three numbers, or two letters followed by four numbers). The exact format varies by state.
Write down the number exactly as it appears on the plate, including any spaces or hyphens. Some states use vanity plates with custom letters or numbers; if you have a vanity plate, the registration number is still the sequence shown on the plate itself. If your plate is damaged, faded, or missing, contact your state's DMV to request a replacement.
Request a replacement registration card from your DMV
If you cannot locate your registration card, you can request a duplicate from your state's DMV. Most states allow you to request a replacement online through their DMV website, by mail, or by visiting a local DMV office in person. You will typically need to provide your name, address, vehicle VIN, and a small fee (usually between $5 and $25, depending on your state).
The replacement card usually arrives within two to four weeks by mail. If you need the registration number before the card arrives, you can use the number on your license plate instead — it is the same number. Some states also allow you to look up your registration number on their DMV website if you log in with your driver's license number and other identifying information.
Find your registration number online through your state's DMV
Many states offer an online portal where you can view your vehicle registration details, including your registration number. Visit your state's DMV website and look for a section labeled "Check Registration Status," "View My Registration," or "Look Up Registration." You will need to log in with your driver's license number, date of birth, and sometimes your vehicle's VIN.
Not all states offer this service, and availability varies. If your state does not have an online lookup tool, you can call your state's DMV customer service line or visit a local DMV office with your driver's license and proof of vehicle ownership (such as your title or insurance card). The DMV staff can provide your registration number over the phone or print a temporary document showing the number while you wait for a replacement card.
Understand what your registration number tells you
Your registration number is unique to your vehicle and changes only if you move to a different state or request a new plate from your DMV. The number itself does not encode information about your vehicle — it is straightforward a reference code that links your vehicle to your registration record in the DMV database. When you renew your registration, you keep the same number unless you choose a vanity plate or your state reassigns it.
If you sell your vehicle, the registration number stays with the vehicle. The new owner will register it in their name and receive their own registration card with the same number on it. The registration number is public information and appears on your vehicle's exterior, so there is no privacy concern in sharing it with mechanics, insurance companies, or other service providers who need to identify your vehicle.
Frequently Asked Questions
Is my registration number the same as my VIN?
No. Your registration number is a short code on your license plate and registration card. Your VIN is a longer 17-character code that identifies your vehicle's make, model, year, and history. You can find your VIN on your registration card, title, insurance card, or on the dashboard at the base of the windshield on the driver's side.
What if my license plate is damaged or the number is hard to read?
Contact your state's DMV to request a replacement plate. You can usually do this online, by mail, or in person. There is typically a small fee. In the meantime, use your registration card to find your registration number, or check your insurance card or vehicle title.
Can I change my registration number?
You cannot change your registration number unless you move to a different state or request a vanity plate. A vanity plate lets you choose custom letters or numbers, but it is still a registration number assigned by your DMV. Vanity plates usually cost more than standard plates and require a separate request through your state's DMV.
Do I need my registration number to renew my registration?
Your state's DMV will send you a renewal notice by mail that includes your registration number. You do not need to provide it to renew — the DMV already has it on file. However, having it handy when you renew online or by phone can speed up the process.
What should I do if someone else is using my registration number?
This is extremely rare, as registration numbers are unique to each vehicle. If you suspect fraud or identity theft related to your vehicle registration, contact your state's DMV when ready and file a report. Bring your title, registration card, and driver's license to a local DMV office or call their fraud hotline.