Sequential N-numbers
Numbers built on a run, like 123 or 456, have an order that is easy to say and easy to remember. The short ones (N123, N1234) were claimed long ago, but five-character numbers with a run inside them surface regularly.
103 open at the FAA right now
Every number below came back available from the FAA's own search on October 4, 2026. Click one to check it live and reserve it in your name.
Frequently asked questions
Is N123 or N1234 available?
Almost never. The shortest sequences have been held for decades. Five-character numbers that contain a run, such as N123AB or N3456K, open up far more often and are listed here whenever the nightly sweep finds them.
What counts as a sequential number here?
Any number whose digits contain an ascending run of three: 123, 234, 345, 456, 567, 678 or 789.
More ways to find a number
- Repeating-digit N-numbers
- Initials N-numbers
- What a custom tail number really costs
- How to reserve an N-number with the FAA
Want a number that isn't listed?
Check any number live. If it's open, we file the reservation in your name within 24 hours for $500 flat, with a full refund if we can't secure it.