The main identification number is your driver's license number
Your driver's license number is the unique identifier printed on the front of your license. It is not your Social Security number — it is a separate number assigned by your state's Department of Motor Vehicles (DMV) when you first get a license. Every state formats this number differently. Some use letters and numbers mixed together, some use only numbers, and the length varies by state.
This number stays with you as long as you hold a license in that state. If you move to a different state and get a new license, you will receive a new driver's license number. If you renew your license in the same state, you usually keep the same number.
You will need your driver's license number when you rent a car, open a bank account, explore for credit, or provide proof of identity to a government office. It is printed on the front of your card and is the first thing most people ask for when they need to verify who you are.
Key Takeaways
- Your driver's license number is a unique identifier assigned by your state's DMV and is different from your Social Security number.
- Each state uses its own format for the license number, so there is no single standard across the country.
- The number stays the same when you renew your license in the same state, but changes if you move to a different state.
- You will need this number for rental cars, financial accounts, and any situation where you need to prove your identity.
Other numbers and codes on your license
Your license also contains several other codes and numbers that serve different purposes. The expiration date is printed clearly on the front and tells you when your license is no longer valid for driving. Most states issue licenses that last four to eight years, depending on your age and whether you renewed online or in person.
The back of your license usually shows a barcode or magnetic stripe that stores your information electronically. This allows police officers and other officials to scan your license and pull up your record when ready. The barcode contains the same information that is printed on the front, just in a format a machine can read.
Some licenses also display a class or type code — usually a letter like "D" or "C" — that indicates what vehicles you are allowed to drive. A standard passenger car license is different from a commercial truck license or a motorcycle license. This code tells law enforcement what you are legally permitted to operate.
Where to find your license number if you cannot read it
If your license is worn, faded, or damaged and you cannot read the number clearly, you can contact your state's DMV directly. Most states allow you to look up your license number online through their DMV website by entering your name, date of birth, and address. Some states charge a small fee for this service, while others provide it at no cost.
You can also visit a DMV office in person and ask them to provide your license number. Bring a form of identification such as a passport or birth certificate. If your license is damaged enough that the number is unreadable, you may want to request a replacement license at the same time, which usually costs between $10 and $30 depending on your state.
How your license number differs from other identification numbers
Your driver's license number is separate from your Social Security number, your state ID number (if you have one), and your passport number. Each of these is a different identifier used for different purposes. Your Social Security number is used for tax and employment records. Your state ID number, if you have one, is used for non-driving identification. Your passport number is used for international travel.
Banks and credit card companies sometimes ask for your driver's license number as a form of identity verification, but they are not asking for your Social Security number. The license number is visible on your card and is meant to be shared in situations where you need to prove who you are. Your Social Security number should be kept private and only given to employers, financial institutions, and government agencies that have a legitimate reason to request it.
What happens if someone has your license number
Your driver's license number alone is not enough for someone to open accounts or commit fraud in your name. Unlike your Social Security number, which is tied to your credit history and financial records, your license number is primarily a way to identify you in traffic stops or when you need to prove your age or identity in person.
That said, you should not give your license number to strangers or over unsecured phone lines. If you believe your license number has been compromised — for example, if your wallet was stolen — contact your state's DMV and ask about getting a replacement license with a new number. This is a precaution that can prevent someone from using your number to impersonate you in a traffic stop or other situation.
Frequently Asked Questions
Is my driver's license number the same as my state ID number?
No. If you have both a driver's license and a state ID card, they are two separate documents with two different numbers. A state ID is used for identification purposes only and does not permit you to drive. Some people have both if they no longer drive but still need a form of ID.
Can I change my driver's license number?
You cannot request a different number while renewing your license in the same state — the DMV will assign you the same number. However, if you get a replacement license due to damage, loss, or theft, you may receive a new number. Contact your state's DMV to ask what happens in your specific situation.
What if I lost my license and need to know the number?
Visit your state's DMV website and use their online lookup tool, or call the DMV directly. You will need to provide your name, date of birth, and address. Some states also allow you to look up this information through their online portal if you have created an account.
Is my driver's license number printed on my insurance card?
Usually not. Your insurance card typically shows your policy number, not your driver's license number. However, when you explore for insurance, the company will ask for your license number as part of the underwriting process. Keep both documents separate and know which number belongs to which document.