Your driver license number is printed in the upper right corner of your Colorado driver's license card, below your photograph.

The number appears as a sequence of digits unique to you. On a standard Colorado license, it sits in a box labeled with the letter "D" — the same format used on licenses across the United States. This is not the same as your Social Security number, your date of birth, or any other identifier on the card.

You will need this number whenever you renew your license, update your address, check on a ticket or traffic record, or provide proof of identity to law enforcement. It is also the number insurance companies and rental car agencies ask for when you hand over your physical card.

Key Takeaways

  • Your Colorado driver license number is printed in the upper right area of your card, in a box marked with the letter "D".
  • This number is unique to you and different from your Social Security number or any other ID number on the license.
  • You will need your license number to renew, update your address, or respond to traffic matters with the Colorado Department of Motor Vehicles.
  • If you cannot locate the number on your physical card, the Colorado DMV can provide it by phone or through your online account.

How the number is formatted on your card

Colorado driver license numbers follow a standard format that makes them straightforward to spot once you know where to look. The number typically consists of digits only — no letters mixed in — and is usually between 9 and 12 characters long depending on when your license was issued.

The box containing your number is positioned in the upper right section of the front of your card, directly below your color photograph. It is one of the most prominent pieces of information on the license, so it should not be hard to find once you hold the card in front of you.

When you need your license number

Your driver license number comes up in several common situations. If you are renewing your license before it expires, the Colorado DMV will ask for this number to pull up your record. If you move and need to update your address, you will provide it over the phone or online. If you receive a traffic ticket or citation, the officer writes your license number on the ticket, and you may need to reference it when you respond or pay.

Insurance companies also ask for your license number when you get a quote or file a claim. Rental car agencies will scan or write down your number when you pick up a vehicle. Banks and other institutions sometimes ask for it as a secondary form of identification. Having it memorized or knowing where to find it quickly saves time in these moments.

What to do if you cannot find your number

If your license is damaged, faded, or you straightforward cannot locate the number on your card, the Colorado Department of Motor Vehicles can provide it to you. You can call the DMV directly during business hours and give them your name and date of birth, and they will read your license number to you over the phone.

If you have created an online account through the Colorado DMV website, you can also log in and view your license information, including your license number, without leaving home. This is often the fastest option if you need the number outside of DMV business hours. You will need your Social Security number and other personal details to set up the account if you have not already done so.

Difference between your license number and other IDs on the card

Your Colorado driver license carries several different numbers and codes, and it is straightforward to confuse them. Your license number (marked with "D") is separate from your date of birth, your Social Security number (if you provided one), and any other identifier printed on the card.

The license number is the one the DMV uses to track your driving record, your vehicle registrations, and your license status. When someone asks for your "license number," they mean this specific number in the "D" box — not your birth date or any other code on the card. If you are unsure which number someone is asking for, it is always safe to ask them to clarify.

Keeping your license number safe

Your driver license number is a form of personal identification, so treat it with the same care you would your Social Security number. Do not share it with people you do not trust, and be cautious about giving it out over the phone or online unless you initiated the contact and know who you are talking to.

Scammers sometimes call claiming to be from the DMV and ask for your license number. The real Colorado DMV will not call you asking for this information. If someone contacts you unexpectedly asking for your license number, hang up and call the DMV directly using the phone number on their official website to verify whether the contact was legitimate.

Frequently Asked Questions

Is my driver license number the same as my Social Security number?

No. Your driver license number is a separate identifier issued by Colorado and printed in the "D" box on your card. Your Social Security number is a federal identifier. They are different numbers, and you should never confuse them when someone asks for your license number.

Can I change my driver license number?

No. Your license number is assigned to you when you first receive your Colorado driver's license and stays the same throughout your life, even if you renew your license multiple times. The number does not change unless there is a serious error in the DMV's records.

What if my license number is printed wrong or unclear on my card?

Contact the Colorado DMV to report the error. You can call them or visit a local DMV office in person. They can verify the correct number in their system and issue you a replacement card with the correct information printed clearly. There is usually a fee for a replacement card.

Do I need to memorize my license number?

You do not have to memorize it, but it is helpful to know where to find it quickly. Keep your physical license in a safe place, and consider writing the number down in a find location at home so you can reference it if your card is lost or damaged.

Will my license number change if I renew my license?

No. When you renew your Colorado driver's license, your license number stays the same. The DMV uses the same number to update your record with the new expiration date and any other changes you made during the renewal process.