What an aircraft registration number is and where to find it

An aircraft registration number, also called a tail number or N-number in the United States, is a unique identifier painted on the fuselage and wings of every aircraft. In the U.S., all civil aircraft carry an "N" prefix followed by up to five characters (letters and numbers). Other countries use different prefixes — Canada uses "C-", the United Kingdom uses "G-", and so on. The registration number is the fastest way to look up specific information about any aircraft you see or hear about.

You can find an aircraft's registration number by looking at the tail fin or fuselage of the plane itself, or by searching online databases that are free and open to the public. The Federal Aviation Administration (FAA) maintains the official U.S. aircraft registry, and several third-party websites mirror or link to that data. If you are trying to identify a plane you saw at an airport or heard overhead, the tail number is your starting point.

Key Takeaways

  • U.S. aircraft tail numbers begin with "N" and are followed by up to five characters; other countries use different prefixes that identify the nation of registration.
  • The FAA's official registry is searchable for free at faa.gov, and several independent aviation websites offer the same data in different formats.
  • A registration number search returns the aircraft type, owner name, manufacturing date, and current registration status, but not real-time location or flight path.
  • Registration records are public information, though some aircraft used by government agencies or law enforcement may have restricted or redacted ownership details.

How to search the FAA aircraft registry

The FAA's official Aircraft Registry is searchable through the FAA's online portal at registry.faa.gov. You enter the tail number (with or without the "N" prefix) into the search box, and the database returns the aircraft's make and model, serial number, year of manufacture, current owner, and registration status. The search takes seconds and requires no account or login.

To use the FAA registry: go to registry.faa.gov, select "Aircraft" from the menu, enter the N-number in the search field, and click search. The results page shows the registered owner's name (which may be a company, individual, or trust), the aircraft type, and whether the registration is active, expired, or pending. If the search returns no results, the tail number may be inactive, mistyped, or not yet registered.

The FAA updates its registry regularly but not in real time. A newly registered aircraft may take a few days to appear in the searchable database. Similarly, if an aircraft is sold or changes ownership, the registry may lag by a week or more before reflecting the new owner's name.

Third-party aviation databases and what they offer

Several independent websites maintain copies of FAA registry data and add their own layers of information. FlightAware, ADS-B Exchange, and Flightradar24 are popular platforms that show real-time aircraft positions, flight paths, and historical flight data. These sites pull tail numbers from the FAA registry and cross-reference them with live tracking data from aircraft transponders.

Other sites like Aircraft.com and Plane Finder offer searchable databases of aircraft by tail number, owner, or airport. Some provide additional details such as aircraft age, maintenance records, or accident history. Most of these services are free for basic searches, though some charge for premium features like historical flight tracking or detailed maintenance logs.

The advantage of third-party sites is convenience and presentation. They often display the information in a cleaner format than the official FAA registry and may include photos, flight history, or owner background. The disadvantage is that they depend on the FAA's data and may lag behind official updates. Always cross-check critical information against the FAA registry if accuracy is important.

What information a registration search does and does not reveal

A registration number search tells you the aircraft's make, model, year, serial number, and registered owner. It shows whether the aircraft is currently registered with the FAA or if the registration has lapsed. For some aircraft, you can also see the address of the registered owner, though this is sometimes a business address or a trust rather than a home address.

A registration search does not tell you where the aircraft is right now, where it is headed, or who is flying it at this moment. The FAA registry is a static record of ownership and certification, not a real-time tracking system. To find an aircraft's current location, you need a real-time tracking service like FlightAware or Flightradar24, which receive data from aircraft transponders.

The registry also does not include pilot names, maintenance details, or accident reports. Those records are maintained separately by the FAA and the National Transportation Safety Board (NTSB). A registration search is a starting point, not a complete picture of an aircraft's history or current status.

Restricted and redacted aircraft registrations

Some aircraft have restricted or partially redacted registrations. Government aircraft, law enforcement planes, and aircraft used by certain federal agencies may show limited ownership information in the public registry. The tail number is still visible and searchable, but the owner field may list a generic entity like "United States of America" or a shell company rather than the actual operating agency.

Additionally, some private owners request that their address be withheld from the public registry. In these cases, the FAA may show the aircraft type and serial number but redact the owner's street address. The owner's name is usually still visible, but the specific location is not. This is a privacy protection, not a sign that the aircraft is hidden or unregistered.

If a registration search returns minimal information, it does not mean the aircraft is unregistered or illegal. It may straightforward mean the owner has requested privacy protection or the aircraft is operated by a government entity. The tail number itself is always public and always searchable.

How registration numbers differ by country

Every country assigns its own registration prefix to aircraft registered within its borders. The prefix is a two-letter country code that appears before the aircraft's unique identifier. The United States uses "N", Canada uses "C-", the United Kingdom uses "G-", Germany uses "D-", France uses "F-", and so on. These prefixes are internationally standardized and recognized by aviation authorities worldwide.

To search for aircraft registered outside the United States, you need to use the aviation authority's database for that country. The European Union Aviation Safety Agency (EASA) maintains a registry for European aircraft. Transport Canada maintains the registry for Canadian aircraft. Each country's civil aviation authority publishes its own searchable database, though not all are as user-friendly as the FAA's.

If you see an aircraft with a prefix other than "N" and want to look it up, identify the country code first, then search that country's aviation authority website. Many international aviation databases like FlightAware and Flightradar24 include aircraft from multiple countries and allow you to search by tail number regardless of origin.

Common reasons to search an aircraft registration

People search aircraft registrations for many reasons. Aviation enthusiasts track specific planes or airlines. Researchers study aircraft ownership patterns or fleet composition. Journalists investigate aircraft used by public figures or companies. Neighbors near an airport may want to know what types of planes are flying overhead. Real estate buyers near an airport sometimes research which aircraft regularly use the facility.

In some cases, people search a registration to verify that an aircraft is legitimate and currently registered. If you are considering purchasing an aircraft or chartering one, confirming that the tail number matches an active FAA registration is a basic due-diligence step. Similarly, if you hear about an aircraft accident or incident, searching the tail number in the FAA registry confirms the aircraft's type and owner.

The registration search is also a starting point for deeper research. Once you have the aircraft's make, model, and serial number, you can search accident databases, maintenance records, or ownership history through specialized aviation research sites.

Frequently Asked Questions

Can I find out who owns a specific aircraft just by looking at its tail number?

Yes. Search the tail number in the FAA registry at registry.faa.gov, and the results will show the registered owner's name. For some aircraft, you will also see the owner's address. For others, the address may be redacted for privacy, or the owner may be listed as a trust or shell company rather than an individual.

What if the FAA registry search returns no results?

The tail number may be inactive, expired, or not yet registered in the FAA database. It is also possible you mistyped the number or the aircraft is registered in another country. Try searching without the "N" prefix, or use a third-party aviation database to double-check the tail number before concluding it does not exist.

Can I use a registration search to track an aircraft in real time?

No. The FAA registry shows ownership and certification only, not current location. To track an aircraft's real-time position and flight path, use FlightAware, Flightradar24, or ADS-B Exchange, which receive live transponder data from aircraft in flight.

Are aircraft registration records public information?

Yes, with limited exceptions. The FAA registry is open to the public, and tail numbers are always visible. Some government and law enforcement aircraft have redacted ownership information, and some private owners can request that their address be withheld. The tail number itself is never hidden.

How often does the FAA registry update?

The FAA updates the registry regularly, but not in real time. New registrations, ownership changes, and status updates may take several days to appear in the searchable database. If you search for a recently registered aircraft and find no results, try again in a few days.