N-Number Combinations

Length, Format, and Quantity of all Aircraft Registration Numbers

The entire FAA N-number database consists of 915,399 aircraft registration numbers
Since only 1% of all N-numbers are two & three digit, prices for these short numbers have increased

Shown below are all N-number combinations & quantities:

5 digit	Quantity
N12345	90,000
N1234A	216,000
N123AB	518,400
90%	824,400

4 digit	Quantity
N1234	9,000
N123A	21,600
N12AB	51,840
9%	82,440

3 digit	Quantity
N123	900
N12A	2,160
N1AB	5,184
0.9%	8,244

2 digit	Quantity
N12 ^*	90
N1A	216

0.03%	306

1 digit	Quantity
N1 ^*	9


0.001%	9

^* N1 through N99 reserved for FAA use (not available to the public)

N-numbers can not start with zero, and can not contain letters i or o

Current Status of Entire FAA Database: Assigned, Held by FAA, Reserved, Available

915,399

Total N-number combinations (entire FAA inventory)

-338,876

U.S. registered aircraft with assigned N-numbers

-76,449

4,801 Held by FAA indefinitely, airport surface awareness system that tracks ground vehicles

49,992 Held by FAA indefinitely, SBS Program Office for the Privacy ICAO Address program (PIA)

21,656 Held by FAA in a five year Canceled/Not Assigned status, then returned to inventory

-46,702

Reserved by individuals, businesses, and manufacturers for future use, $10 annual renewal required

453,372

N-numbers currently available directly from FAA for $10 annual reservation

Updated August 2026

Array
(
    [total] => 915,399
    [assigned] => -338,876
    [airports] => 4,801
    [sbs] => 49,992
    [cancelled] => 21,656
    [reserved] => -46,702
    [available] => 453,372
    [mod] => 2026-08-13 11:01:48
    [date] => August 2026
)