What you can find by checking a license plate
When you look up a license plate number, you can find the vehicle's registration status, the state where it's registered, and sometimes the vehicle type and color. What you cannot find through a public lookup is the owner's name, address, or phone number — that information is protected by privacy law in most states.
The reason you might check a plate varies: you may have been in a minor accident and need to verify the other vehicle's registration, you're buying a used car and want to confirm it's not stolen, or you witnessed something and want to report it to police. Each situation uses a different tool, and not all of them are available to the general public.
Understanding what information is actually available — and where to find it — saves you time and prevents frustration when you hit a privacy wall.
Key Takeaways
- Most states let you check whether a plate is currently registered and active, but do not release owner information to the public.
- Your state's Department of Motor Vehicles website usually has a free lookup tool that shows registration status and basic vehicle details.
- If you need owner information because of an accident or crime, police can obtain it through their own channels and you should file a report instead of trying to look it up yourself.
- Third-party websites that claim to reveal owner names often charge a fee and pull data from public records, not from the DMV.
- A VIN (vehicle identification number) check through the National Insurance Crime Bureau can tell you if a car is stolen, which a plate lookup alone cannot.
Using your state DMV's free plate lookup
Nearly every state offers a free online tool on its Department of Motor Vehicles website where you can enter a plate number and see whether that registration is current. The information returned usually includes the vehicle's make, model, color, and registration expiration date. Some states also show whether the vehicle has active insurance on file.
To find your state's tool, go to your state's DMV website and look for a section labeled "Check Registration Status," "Verify Registration," or "Look Up a Vehicle." The exact name varies by state. You will need the full plate number, including any letters or numbers, exactly as they appear on the plate.
This lookup tells you whether the plate belongs to a currently registered vehicle, which is useful if you're concerned a car you saw was unregistered or if you want to verify a vehicle before buying it. It does not tell you who owns the car.
What happens if you need the owner's information
If you were in an accident with another vehicle, you should exchange information directly with the other driver at the scene — their name, phone number, address, insurance company, and policy number. If they drove away or refused to provide information, you have a hit-and-run situation and should file a police report with the plate number you recorded.
Police have legal authority to obtain owner information from the DMV that the public does not. When you file a report, the officer can look up the registered owner and contact them. This is the proper channel for accidents, property damage, or any situation where you need to identify someone for legal reasons.
Trying to find owner information through third-party websites or by calling the DMV directly will not work — the DMV will not release that data to you over the phone or through a public request.
Third-party lookup services and what they actually do
Websites that advertise "reverse plate lookup" or "find the owner of a license plate" typically charge between $5 and $30 per search. These sites do not access the DMV database. Instead, they pull information from public records like property tax records, voter registration, or court documents, then match that data to the plate number you entered.
The results are often incomplete, outdated, or inaccurate because they rely on connecting separate databases that may not sync. If the owner has moved, changed their name, or the property is in a trust or business name, the information may be wrong or missing entirely.
These services can be useful if you are trying to track down someone you know and have lost touch with, but they are not reliable for verifying vehicle ownership or identifying someone involved in an incident. For legal situations, use the police report process instead.
Checking if a vehicle is stolen
A license plate lookup will not tell you if a car is stolen. To check that, you need to run the vehicle identification number (VIN) through the National Insurance Crime Bureau's database at nicb.org, which is free and open to the public.
You can find the VIN on the dashboard at the base of the windshield on the driver's side, or on the vehicle's registration documents. The NICB database shows whether the vehicle has been reported stolen to law enforcement. If you are considering buying a used car and want to verify it is not stolen, running the VIN through NICB is a standard step.
You can also request a vehicle history report from services like Carfax or AutoCheck, which cost around $25 to $40 and include theft history along with accident history, title status, and service records.
When you are selling or buying a used car
If you are buying a used car, check the plate number against your state's DMV registration tool to confirm the registration is current and matches the vehicle's details the seller provided. Then run the VIN through NICB to rule out theft, and consider a full vehicle history report to see accident and service history.
If you are selling a car, you do not need to look up your own plate — you already have your registration documents. Make sure your registration is current before you sell, and transfer the title properly so the new owner can register it in their name.
Never buy a car with an expired registration or one where the plate does not match the vehicle's description. These are signs the seller may not have clear title or the vehicle may have been in an accident that was not disclosed.
Frequently Asked Questions
Can I find out who owns a car just by looking at the license plate?
Not through official channels. The DMV does not release owner names to the public. Third-party websites may show a name pulled from public records, but it is often outdated or wrong. If you need the owner's information for legal reasons, file a police report and let them look it up.
What if the plate lookup shows the registration is expired?
An expired registration means the vehicle should not be driven on public roads. If you see an expired plate on a car being driven, you can report it to local police, but you are not required to. If you own the car, renew your registration through your state's DMV before driving it again.
Is it legal to look up someone's license plate?
Yes, it is legal to use your state's free DMV lookup tool. It is also legal to use third-party lookup services. However, using that information to harass, stalk, or threaten someone is illegal. If you are looking up a plate for any reason other than verifying a vehicle's registration status or investigating an accident you were involved in, consider whether you have a legitimate reason to do so.
Do I need the full plate number to look it up, or just part of it?
Most state DMV tools require the complete plate number. If you only have a partial number, you will not be able to search. If you were in an accident and only caught part of the plate, provide what you have to the police officer filing the report — they have other tools to search partial information.
Can I look up a plate from another state?
You can only look up plates registered in your own state through your state's DMV tool. If you need information about a vehicle registered in another state, you would need to use that state's DMV website or contact their DMV directly. Some third-party lookup services claim to search across all states, but results are less reliable than using the official state tool.