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Guide · Lookup

How to look up an aircraft by N-number.

A tail number opens the public record. Here's how to read it, and where its limits are.

Updated October 2026 · 4 min read

What an N-number is

Every aircraft on the US civil registry has a registration number that starts with N, followed by one to five characters. The first character after the N is a digit from 1 to 9, and the letters I and O are never used, so they can't be confused with 1 and 0.

What a lookup shows

  • The aircraft: manufacturer, model, year, serial number, engine and seats.
  • The registration: status, the date the certificate was issued and when it expires.
  • The registrant type (individual, company, government) and where the aircraft is registered.

What it doesn't show

The registry records who registered the aircraft, not who holds title or any liens, and it can lag paperwork by days or weeks. Before buying, use the official FAA registry and a professional title search.

Deregistered numbers

If a number isn't currently registered, it may have been cancelled, exported or reserved. We show the most recent cancelled record when one exists, including the destination country for exports.

Confirm at the source

Every Aeonis Tail lookup links to the FAA's own record for that N-number. Treat the FAA registry as the final word.

Look up any US aircraft

Free N-number lookup and the last 30 days of FAA registry changes.