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Frequently Asked Questions

Everything you need to know about FAA N-numbers and aircraft registration.

What is an N-number?

An N-number is the unique registration number assigned to aircraft registered in the United States. It always begins with the letter 'N' followed by up to 5 alphanumeric characters. For example, N12345 or N1AB. The FAA requires all U.S. civil aircraft to display this number.

How do I register an aircraft N-number with the FAA?

To register an N-number, you need to: 1) Search for an available N-number using Tailfinder, 2) Reserve it on the FAA website for $10, 3) Submit FAA Form 8050-1 (Aircraft Registration Application), and 4) Pay the $5 registration fee. The process typically takes 6-8 weeks.

How much does it cost to register an N-number?

Reserving an N-number costs $10 and is valid for 1 year. The actual aircraft registration fee is $5. So the total cost to register is $15. Renewal of registration costs $5 every 3 years.

Can I choose any N-number I want?

You can request any available N-number that follows FAA format rules: it must start with 'N', be 2-6 characters total, and can only contain numbers and letters (except I and O, which are not allowed to avoid confusion with 1 and 0).

How long does an N-number reservation last?

An N-number reservation is valid for 1 year from the date of reservation. You must complete the aircraft registration within that time, or the reservation expires and the number becomes available again.

What does it mean when an N-number is 'assigned'?

An 'assigned' N-number is currently registered to an aircraft. It cannot be reserved or used until the current registration is cancelled or expires. An 'available' N-number has no current registration and can be reserved.

Can I transfer an N-number to another aircraft?

Yes, N-numbers can be transferred between aircraft you own, or released back to the FAA. You'll need to submit the appropriate FAA forms and may need to re-register the new aircraft with that number.

Why do some N-numbers have letters and others only numbers?

The FAA allows several N-number formats: N followed by 1-5 numbers (N1, N12345), or N followed by 1-4 numbers and 1-2 letters (N1A, N12AB). Shorter numbers and those with letters are often considered more desirable and memorable.

How often is Tailfinder's data updated?

Tailfinder syncs with the official FAA aircraft registry database regularly to ensure you're seeing current availability. However, the FAA updates their registry on their own schedule, so there may be a short delay between FAA changes and our data.

Is Tailfinder free to use?

Yes, Tailfinder is completely free. We built it as a helpful tool for pilots and aircraft owners. When you're ready to manage your flights, check out Wingbase for easy flight logging.

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