The FAA Registry is the official database of civil aircraft registered in the United States, maintained by the Federal Aviation Administration's Civil Aviation Registry in Oklahoma City. Every civilian aircraft operating in the US must be registered with the FAA, and that registration is what gives an aircraft its N-number — the identifying number that starts with "N" and appears on the aircraft's fuselage and wings.
The registry is publicly searchable through the FAA's Aircraft Inquiry system at registry.faa.gov. You can search by N-number to find registration status, aircraft make and model, year of manufacture, owner name and address, airworthiness status, and whether any liens have been recorded against the aircraft. The database is updated regularly as new registrations, transfers, and cancellations are processed.
Understanding how the FAA Registry works matters for several groups: pilots who want to verify aircraft registration before a flight, aircraft buyers conducting due diligence before purchase, aviation attorneys and title companies researching aircraft ownership history, and researchers tracking fleet composition and ownership trends. The registry is a primary source for all of these use cases.
The FAA also manages related registries for airmen certificates and medical certificates, though these are separate systems from the Aircraft Registry. When pilots refer to "the FAA Registry" without further specification, they almost always mean the Aircraft Registry — the civil aviation registration database that covers fixed-wing aircraft, helicopters, gyrocopters, gliders, balloons, and lighter-than-air craft registered in the US. Reviewing the FAA web scheduler system alongside registry procedures gives pilots a complete picture of the FAA's online service infrastructure for aviators.
The registry database also integrates with other FAA systems. Airworthiness certificates are tied to the registration record — when you look up an N-number, the record includes the airworthiness category (standard, limited, experimental, etc.) issued for that aircraft. The registration and airworthiness certificate must both be kept in the aircraft during all flights, and both must be current.
If either document is expired or missing, the aircraft is not legally airworthy and cannot be flown. Pilots conducting a thorough preflight check of aircraft documents should verify both documents are present, current, and correctly match the specific aircraft they're about to fly.
Aircraft must be owned by a US citizen, lawful permanent resident, US government entity, or a corporation meeting specific criteria. Foreign nationals cannot hold US aircraft registration directly. Verify ownership eligibility before starting the process.
N-numbers are assigned by the FAA. Standard assignments are sequential. You can also reserve a specific custom N-number through the FAA's N-Number Reservation system for a fee — this reserves the number for up to 1 year while you complete registration.
Aircraft Registration Application (Form 8050-1) must be filled out with the aircraft's make, model, serial number, and ownership information. The form must be signed by the applicant. Include a $5 registration fee payable to the FAA.
Mail the completed Form 8050-1, the $5 fee, and any required supporting documents (bill of sale, proof of citizenship) to the FAA Civil Aviation Registry in Oklahoma City. The FAA does not accept electronic submissions for initial registration.
While processing is pending, the FAA mails a pink authorization letter that permits aircraft operation for up to 90 days. Keep this in the aircraft. The actual Certificate of Aircraft Registration (AC Form 8050-3) arrives within 3–5 weeks.
Since January 2010, US aircraft registrations expire every three years. The FAA sends renewal notices by mail and email. Failure to renew cancels the registration — flying with a cancelled registration is illegal and can result in certificate action.
The main search interface at registry.faa.gov offers several search methods. N-number search is the most direct — enter the N-number without spaces (N12345 not N 12345) and the system returns the full registration record immediately if the aircraft is registered. The record shows the registered owner, mailing address, certificate issue date, expiration date, airworthiness category, and whether the registration is active, expired, or cancelled.
Make and model search allows you to find all registered aircraft of a specific type — useful for market research, fleet tracking, or finding examples of a specific aircraft for comparison during a purchase. The results can be filtered by state and export to a spreadsheet format. Searching for "Cessna 172" returns thousands of results nationwide. You can narrow by state to see regional fleet counts.
The serial number search is particularly useful for aircraft buyers. Every aircraft manufacturer assigns a unique serial number to each airframe. Searching by serial number in the FAA registry tells you the current N-number associated with that airframe, who owns it, and its registration history. This is important because N-numbers change when aircraft are bought and sold — the serial number is the permanent identifier that follows the airframe throughout its entire life.
The owner name search lets you look up all aircraft registered to a specific individual or company. This search requires an exact or partial name match. For individuals, results show all aircraft registered to people with that name. For corporations, searching the company name returns the fleet associated with that legal entity. The FAA sectional chart system and the aircraft registry together form the core reference infrastructure that pilots use for preflight planning and airspace awareness.
Lien records are also accessible through the registry. The FAA Civil Aviation Registry functions as a recording office for aircraft liens, similar to how county recorders handle real estate liens. When a bank finances an aircraft purchase, the security agreement is recorded with the FAA. Any title search during an aircraft purchase should include a lien check to confirm the aircraft is free and clear of recorded encumbrances before the transaction closes.
Before purchasing any aircraft, buyers should run the N-number through the FAA Registry to verify several things. First, confirm the seller is actually the registered owner — the name on the registry should match the seller. If it doesn't, investigate why before proceeding. Second, check the registration status and expiration date. Third, search the aircraft's lien records to confirm no outstanding loans are secured by the airframe. Fourth, verify the make, model, and serial number match the paperwork the seller provides. Discrepancies between seller documents and registry records are red flags that warrant further investigation before any money changes hands.
When an aircraft is involved in an incident or accident, the N-number provides immediate access to the registration record. Aviation journalists, attorneys, and investigators routinely use registry lookups to identify who owns an aircraft involved in a newsworthy event or legal matter. The owner of record at the time of an incident may bear liability, so accurate registry data is essential for legal proceedings. Note that the registry shows the registered owner, which may be an LLC or trust rather than the actual operator — additional investigation through maintenance records and logbooks may be needed to identify the actual operator at the time of an incident.
Aviation market researchers, aircraft manufacturers, and industry analysts use FAA registry data to track fleet composition, age distribution, and geographic concentration of specific aircraft types. The FAA releases complete registry downloads in CSV format, updated monthly, from its website. These downloads contain all active registered aircraft and are used to build private databases for insurance underwriting, parts market sizing, and maintenance planning. Researchers can analyze trends like the average age of a specific aircraft type fleet, state-by-state concentration of certain aircraft categories, or growth trends in specific segments of the registered fleet.
US aircraft registration requires the aircraft to be owned by an eligible person or entity. Individual owners must be US citizens or lawful permanent residents. Corporate owners must be corporations organized and doing business under US law, with the president, CEO, and two-thirds of board members and voting interest holders being US citizens. Limited liability companies have similar requirements. If an LLC has any foreign members, it generally cannot hold US aircraft registration directly without a special trust arrangement.
The aircraft itself must be eligible for registration. Aircraft manufactured in the US and new aircraft manufactured elsewhere can be registered. Aircraft previously registered in a foreign country can be registered in the US after the foreign registration is cancelled and proper documentation is provided. The FAA will not register an aircraft that is simultaneously registered in another country.
Bill of sale documentation is required to establish a chain of ownership. The FAA requires FAA Form 8050-2 (Aircraft Bill of Sale) or an equivalent document that includes the aircraft make, model, serial number, date of sale, purchase price or statement of gift, and signatures of both buyer and seller. The bill of sale must be submitted with the registration application. Aviation practice tests covering FAA chart symbols and legend topics complement registry knowledge by ensuring pilots understand the regulatory framework surrounding aircraft identification in charts and publications.
The FAA's registration database has historical gaps from decades before digital record keeping. Aircraft manufactured in the 1950s and 1960s may have incomplete chain-of-title records in the FAA's digital system. For vintage aircraft purchases, buyers sometimes need to research physical records held at the Civil Aviation Registry or engage an aviation title company with experience tracing historical ownership through paper records. The depth of digital history varies by aircraft age and how thoroughly prior transactions were documented in the pre-digital era.
Co-ownership is permitted, but registration is issued in the name of only one owner. The co-owner whose name appears on the registration must meet the eligibility requirements. All co-owners must consent to the registration, and the relationship between co-owners should be documented separately in a co-ownership agreement that addresses use rights, cost sharing, and what happens if co-owners want to exit the arrangement.
Every US-registered civil aircraft carries an N-number — the national prefix for the United States under the International Civil Aviation Organization (ICAO) aircraft nationality marking system. Other countries use different prefixes: Canada uses C, the United Kingdom uses G, Germany uses D. The N-prefix immediately identifies an aircraft as US-registered regardless of where in the world it operates.
N-numbers consist of the letter N followed by one to five characters. Those characters can be digits 1–9 (not 0 as the first digit), letters A–Z (excluding I and O, which resemble 1 and 0), or a combination. Valid formats include N1 through N99999 (numeric only), N1A through N9999Z (one trailing letter), and N1AB through N999ZZ (two trailing letters). The FAA has issued millions of N-numbers over aviation history, and certain ranges have been fully exhausted and reused after aircraft deregistration.
Standard N-number assignments by the FAA are sequential from an available pool. Custom N-number reservations allow aircraft owners to choose a specific number — common choices include N-numbers that spell out the owner's initials, a business name abbreviation, or a personally significant number. The reservation fee was $10 as of recent years, and the reservation holds the number for one year while the owner completes aircraft registration. Studying FAA airspace classification practice questions helps pilots understand the regulatory context in which N-numbers and aircraft identification play a role during flight operations.
Dealers and manufacturers hold N-numbers differently from private owners. Aircraft dealers can operate multiple aircraft under a single dealer certificate without registering each aircraft individually, using a placard system instead of individual registration. Aircraft manufacturers are similarly permitted to operate unregistered aircraft during testing and development phases under experimental certificates. These limited exceptions exist because the substantial administrative burden of registering every aircraft at every stage of manufacturing and sales would be impractical — but they're specific legal exceptions rather than general exemptions from registration requirements.
When aircraft are sold, the N-number typically stays with the airframe unless the new owner requests a change. Some buyers prefer to keep the existing N-number for continuity of maintenance records and logbooks, which reference the N-number. Others prefer a new or custom N-number. Either approach is permitted — the FAA simply needs to be properly notified of the ownership change through the standard registration transfer process at the Civil Aviation Registry.
When an aircraft is sold, the new owner must submit a new registration application (Form 8050-1) along with the executed bill of sale (Form 8050-2). The FAA does not automatically transfer registration when an aircraft changes hands — it must be actively re-registered by the new owner. During the period between purchase and new registration being processed, the buyer can operate the aircraft using the pink copy of the bill of sale along with the existing Certificate of Aircraft Registration, which is still valid during the transition period.
Address changes for existing registered aircraft owners require notification to the FAA within 30 days of the change. The notification can be submitted by mail to the Civil Aviation Registry or through the FAA's online systems. Failure to update address information means the FAA's renewal notices won't reach the owner, increasing the risk of inadvertent registration expiration.
Aircraft that are permanently exported from the United States must have their US registration cancelled before or when they are registered in the destination country. The owner submits a cancellation request to the FAA with an export certificate of airworthiness. The FAA then issues an export certificate and cancels the US registration. An aircraft cannot be simultaneously registered in two countries under ICAO rules, so the US registration must be cancelled before foreign registration can proceed.
Aircraft that are destroyed, dismantled, or scrapped should also have their registration cancelled voluntarily. Without cancellation, the aircraft remains in the registry as an active registration even though the physical aircraft no longer exists, which creates data integrity issues in the registry and may cause the former owner to continue receiving renewal notices for an aircraft that no longer exists. The FAA practice test questions covering regulatory topics help pilots develop familiarity with registration requirements alongside operational and navigation knowledge.
The FAA Aircraft Registry is a public record, which means the registered owner's name and mailing address are visible to anyone who searches the N-number. This is a deliberate policy choice — the FAA's position is that aircraft operating in public airspace should be identifiable, similar to how vehicle registration records are public in many states. Some aircraft owners are concerned about this, particularly those who fly personal aircraft from their home base, because the registry effectively publishes their home address alongside their aircraft information.
One common approach to address privacy concerns is registering aircraft through a limited liability company rather than individually. When an LLC owns the aircraft, the LLC name and address appear in the registry rather than the individual owner's personal address. The LLC's registered agent address (often a business address or attorney's office) becomes the public-facing address in the registry. This approach adds complexity — the LLC must be properly maintained with appropriate state filings — but it's a widely used strategy among high-net-worth aircraft owners who prefer not to have their personal residence searchable through the registry.
Trust arrangements are another option, particularly for aircraft that must be registered in US names but have beneficial owners who may not meet direct ownership eligibility requirements. A US citizen serves as trustee and holds the aircraft on behalf of the beneficial owner. The trustee's name appears in the registry. These arrangements are legitimate but must be properly structured to avoid FAA registration fraud, which is a federal offense.
Aircraft clubs and partnerships present special registration considerations. When multiple individuals share an aircraft through a flying club or partnership, the aircraft can only be registered in one name or entity. The others hold an interest through the partnership agreement or club membership, but the registry shows only the registered owner. Partnership agreements and club bylaws should clearly address in writing what happens to the aircraft registration if the registered owner member dies, departs from the organization, or becomes ineligible to hold US registration.
Regardless of registration method, the FAA expects accurate information. Providing false information on registration documents is a federal crime and can result in criminal prosecution separate from any FAA certificate action. The registry's integrity depends on accurate owner information, and the FAA takes registration fraud seriously — particularly in cases involving foreign ownership that is being concealed to circumvent US registration requirements.