What you can and cannot do with a license plate number
You cannot look up a person's name, address, or phone number using only their license plate. That information is protected by state law, and the Department of Motor Vehicles does not release it to the public. Even if you have a legitimate reason — a traffic accident, property damage, or a hit-and-run — you cannot search a database yourself.
What you can do depends on why you need the information and what happened. If you were in a traffic accident or witnessed a crime, law enforcement can trace the plate. If someone hit your car in a parking lot, you have other options. If you straightforward want to identify someone from a plate you saw, there is no legal path forward through official channels.
The reason for this protection is straightforward: license plate data tied to personal information creates safety and privacy risks. Stalkers, abusers, and criminals could use it to locate targets. States keep this data locked down for that reason, and private companies that claim to offer "reverse license plate lookup" services operate in a legal gray area or violate state privacy laws.
Key Takeaways
- State DMVs do not release name and address information connected to license plates to members of the public, regardless of the reason you ask.
- If you were in a traffic accident or witnessed a crime, police can run the plate and contact the owner on your behalf.
- If someone hit your parked car, file a police report and contact your insurance company; they have tools to investigate.
- Online "reverse license plate lookup" services are not legitimate sources of DMV data and may violate state privacy laws.
- If you need to identify someone for a legal reason, work through law enforcement or your insurance company rather than trying to search on your own.
When you were in a traffic accident
If you were involved in a collision and have the other driver's license plate, call the police non-emergency line and file a report. Give the dispatcher the plate number, the time and location of the accident, and a description of the vehicle. The officer will run the plate, identify the registered owner, and contact them. This creates an official record that your insurance company can use.
Do not skip the police report, even if the damage seems minor. Insurance companies often require one before they will investigate a claim. The police report also protects you if the other driver later claims you were at fault — you have a timestamped, third-party account of what happened.
If the other driver left the scene, that is a hit-and-run. Report it to police when ready with the plate number, vehicle description, and direction of travel. Police have the authority to trace the plate and locate the driver. Provide any photos or video you took, and note the names and contact information of any witnesses.
If someone hit your parked car
A parked car hit is different from a collision you witnessed. You may have a plate number from a security camera, a witness, or a note left at the scene. File a police report and provide the plate number. Police will contact the registered owner and ask whether they were involved.
Contact your insurance company and provide them with the plate number, the police report number, and any photos of the damage. Your insurer has investigators who can cross-reference the plate with accident history, repair shops, and other data sources. They may be able to establish that the vehicle was involved in other similar incidents, which strengthens your claim.
If the other driver's insurance company is identified, they may contact you directly. Do not agree to settle without involving your own insurer or a lawyer, especially if the damage is significant or you have injuries.
When you witnessed a crime
If you saw a vehicle involved in a crime — theft, assault, property damage, or any other offense — call the police non-emergency line or 911 if the crime is in progress. Provide the plate number, a detailed description of the vehicle, the direction it was heading, and any information about the driver or passengers you observed.
Police will run the plate and cross-reference it with crime reports, traffic cameras, and witness statements. They have legal authority to identify the owner and investigate. Your role is to provide as much detail as possible so they can act on it.
Do not attempt to follow the vehicle or confront the driver. Do not post the plate number on social media or community forums. Let law enforcement handle the investigation.
Why online license plate lookup services are not reliable
Websites and apps that advertise "reverse license plate lookup" or "find anyone by plate number" do not have access to real DMV data. Some scrape publicly available information from court records, property databases, or other sources and repackage it. Others are scams designed to collect your payment and personal information.
Even if a service claims to have data, using it may violate your state's privacy laws. Many states have laws that prohibit the sale or distribution of vehicle registration information to third parties for purposes other than insurance, law enforcement, or vehicle safety. Using a service that obtained data illegally does not protect you from liability.
If you need to identify someone for a legitimate reason, the legal path is through law enforcement or your insurance company. Both have proper authorization and legal channels to access the information.
What to do if you want to contact someone but do not have their name
If you have a legitimate reason to contact someone — you want to thank them for helping you, you need to discuss a minor accident, or you want to exchange information — and you only have their plate number, ask a police officer to help. Some departments will contact the owner on your behalf and ask if they want to share their contact information with you. This protects both parties' privacy while allowing communication if both people consent.
Alternatively, if the incident involved your vehicle, your insurance company can facilitate contact between you and the other driver's insurer. You do not need the driver's personal information to file a claim or resolve a dispute.
Do not show up at someone's home or workplace based on a plate number you looked up elsewhere. That crosses into harassment, even if your intentions are good.
State-by-state differences in vehicle registration privacy
Every state protects vehicle registration information, but the specific rules vary. Some states allow limited access to registration data for certain purposes — insurance, legal proceedings, or vehicle safety recalls — but not for general public searches. A few states have "sunshine laws" that allow you to request your own registration information, but this does not help you find someone else.
If you need to know what information your state protects and under what circumstances it can be released, contact your state's DMV directly. They can tell you whether a particular request is possible and what process to follow. Do not rely on third-party websites to explain your state's rules.
Frequently Asked Questions
Can I look up a license plate on the DMV website?
No. The DMV website does not have a public search tool for license plates. You can look up information about your own vehicle registration, but you cannot search for other people's plates or the people they belong to.
What if I have a legitimate legal reason to find someone by their plate?
Work through your lawyer, your insurance company, or law enforcement. They have legal authority to request registration information from the DMV. You cannot do it yourself, even with a good reason.
Is it illegal to use a reverse license plate lookup website?
Using the website itself is not necessarily illegal, but the website may be operating illegally depending on where it obtained the data. If the data came from an unauthorized source, you could face liability for using it. It is safer to go through official channels.
What should I do if someone is harassing me and I only have their plate number?
Report it to police. Provide the plate number and describe the harassment. Police can run the plate, identify the person, and contact them or take further action depending on what happened. Do not try to find them yourself.
Can a private investigator look up a license plate for me?
A licensed private investigator may have access to databases that are not available to the public, but they are still bound by state law. They cannot obtain information illegally, and they cannot help you do something that would be illegal for you to do yourself. Ask them what methods they use and whether the information they provide is legally obtained.