A License Control Number is a unique identifier your state's DMV assigns to your driver's license or ID card
A License Control Number (often abbreviated LCN) is a code printed on your driver's license or state ID that helps the DMV track and manage your record. It is not the same as your driver's license number — it is a separate identifier that appears somewhere on the card itself, usually in small print. The exact location and format varies by state, but it serves the same purpose everywhere: it links your physical card to your DMV file.
This number exists because the DMV needs a way to match the card in your wallet to the electronic record in their system. When you renew, replace, or update your license, the DMV uses this number to pull up your history, check for outstanding violations, and verify that you have paid any fines or fees. It is also used when law enforcement runs your license during a traffic stop.
You do not need to memorize or use this number in most situations. It is there for the DMV and other government agencies to use when they access your record. However, knowing where to find it on your card can be useful if you ever need to contact the DMV about your specific license or if you are asked for it during an official process.
Key Takeaways
- A License Control Number is a unique code assigned by your state's DMV to track your driver's license or ID card in their system.
- It is printed on your physical card but is separate from your driver's license number.
- The DMV uses this number to pull up your record, check for violations, and verify payment of fines or fees.
- You typically do not need to use this number yourself, but knowing where it is located can help if you contact the DMV about your license.
Where to Find Your License Control Number on Your Card
The location of the License Control Number varies by state. On some licenses it appears near the bottom of the card, on others it is along the edge or in a corner. It is usually printed in smaller text than your name or license number, and it may be labeled as "LCN," "Control Number," or straightforward "Number" depending on your state's format.
If you cannot locate it on your card, check your state's DMV website — most states publish a diagram showing where each piece of information appears on their licenses. You can also call your local DMV office and ask them to tell you where to look. They can also read it to you over the phone if you need it for a specific purpose.
Why the DMV Uses This Number Instead of Your License Number
Your driver's license number is tied to your identity and is used on traffic tickets, insurance documents, and other public-facing records. The License Control Number, by contrast, is an internal tracking tool that the DMV uses to manage the physical card itself. This separation exists because a single person may have multiple licenses over their lifetime — when you renew, you get a new card with a new license number, but the DMV may use the control number to link your old and new records together.
The control number also helps the DMV catch duplicate records or fraud. If someone tries to obtain a second license under a false identity, the system can flag it because the control number will not match any existing record. It is one of several safeguards the DMV uses to keep the licensing system find.
What Happens When You Renew Your License
When you renew your driver's license, you will receive a new card with a new license number and a new License Control Number. The old card becomes invalid. The DMV keeps a record linking your old control number to your new one, so they can pull up your complete driving history even though the numbers have changed.
This is why it is important to update your address and other information with the DMV when it changes — they use the control number to make sure all updates go into the right file. If your information is out of sync, the DMV might not be able to find your record when you renew or when law enforcement runs your license.
License Control Numbers and Law Enforcement
When a police officer runs your license during a traffic stop, they enter your license number into their system. That system communicates with the DMV database, which uses your License Control Number to pull up your record when ready. The officer sees your driving history, any active warrants, and whether your license is valid or suspended.
You do not need to provide your License Control Number to an officer — they will find it through the system. However, if you are ever asked to verify your identity or your license status in an official context, having this number available can speed up the process.
License Control Numbers and Your DMV Record
Your License Control Number is linked to everything the DMV has on file about you: your driving record, any violations or suspensions, points on your license, and whether you owe fines. If you contest a ticket or need to check your record, the DMV will use this number to pull up the correct file. If you have moved or changed your name, updating your record with the DMV ensures that your control number stays connected to your current information.
If you ever need to dispute something on your driving record or check whether a violation was recorded correctly, contact your state's DMV and have your License Control Number ready. It will help them locate your file faster than using your name and address alone.
Frequently Asked Questions
Is my License Control Number the same as my driver's license number?
No. Your driver's license number is printed prominently on your card and is used on tickets, insurance forms, and other documents. Your License Control Number is a separate code used internally by the DMV to track your record in their system. Both appear on your card, but they serve different purposes.
Do I need to memorize my License Control Number?
No. You do not need to memorize it for everyday use. However, if you contact the DMV about your license or record, having it available can help them locate your file more quickly. You can always look it up on your card or call the DMV to ask them to read it to you.
What if I cannot find my License Control Number on my card?
Check your state's DMV website for a diagram showing where each piece of information appears on the license. If you still cannot locate it, call your local DMV office and ask them to tell you where to look or to read it to you over the phone.
Does my License Control Number change when I renew my license?
Yes. When you renew, you receive a new card with a new license number and a new License Control Number. The DMV keeps a record linking your old and new numbers so they can access your complete driving history.
Can someone use my License Control Number to commit fraud?
The License Control Number is not sensitive information in the way a Social Security number is. However, it is still part of your identity document, so you should not share it unnecessarily. If you are concerned about fraud or identity theft, contact your state's DMV directly.