Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A26AFE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N255KM · operated by AIR CASTLE LLC

Hex
A26AFE
Octal
50465376
Decimal
10,644,222
Country
US
Tail
N255KM
Type
E50P
No current signal · last broadcast Jul 21, 01:15 UTC
Flights observed
67
Distinct callsigns
1
Country
US
Last broadcast
Jul 21, 01:15 UTC

Last known position

Most recent position reported by Mode-S A26AFE.

Country allocation

The ICAO 24-bit address A26AFE falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N255KM - 67 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 N255KM - Jul 21, 00:45 UTCJul 21, 01:15 UTC30m
2026-07-19 N255KM - Jul 19, 18:35 UTCJul 19, 19:10 UTC35m
2026-07-19 N255KM - Jul 19, 17:00 UTCJul 19, 17:50 UTC50m
2026-07-17 N255KM - Jul 17, 16:19 UTCJul 17, 17:09 UTC50m
2026-07-17 N255KM - Jul 17, 14:55 UTCJul 17, 15:29 UTC35m
2026-07-14 N255KM - Jul 14, 17:05 UTCJul 14, 17:40 UTC35m
2026-07-14 N255KM - Jul 14, 14:25 UTCJul 14, 15:25 UTC1h 0m
2026-07-10 N255KM - Jul 10, 22:05 UTCJul 10, 22:40 UTC35m
2026-07-08 N255KM - Jul 8, 13:35 UTCJul 8, 13:55 UTC20m
2026-07-05 N255KM - Jul 5, 22:20 UTCJul 5, 22:40 UTC20m
2026-07-05 N255KM - Jul 5, 18:00 UTCJul 5, 18:40 UTC40m
2026-07-05 N255KM - Jul 5, 15:50 UTCJul 5, 16:50 UTC1h 0m
2026-06-30 N255KM - Jun 30, 22:00 UTCJun 30, 22:55 UTC55m
2026-06-30 N255KM - Jun 30, 20:20 UTCJun 30, 21:05 UTC45m
2026-06-29 N255KM - Jun 29, 14:39 UTCJun 29, 15:04 UTC25m
2026-06-27 N255KM - Jun 27, 15:55 UTCJun 27, 16:20 UTC25m
2026-06-26 N255KM - Jun 26, 19:39 UTCJun 26, 20:20 UTC40m
2026-06-26 N255KM - Jun 26, 17:59 UTCJun 26, 19:00 UTC1h 0m
2026-06-26 N255KM - Jun 26, 12:34 UTCJun 26, 13:34 UTC1h 0m
2026-06-26 N255KM - Jun 26, 11:20 UTCJun 26, 12:00 UTC40m
2026-06-25 N255KM - Jun 25, 22:04 UTCJun 25, 23:49 UTC1h 45m
2026-06-25 N255KM - Jun 25, 15:59 UTCJun 25, 16:45 UTC45m
2026-06-25 N255KM - Jun 25, 14:39 UTCJun 25, 15:04 UTC25m
2026-06-24 N255KM - Jun 24, 15:09 UTCJun 24, 15:39 UTC30m
2026-06-23 N255KM - Jun 23, 20:19 UTCJun 23, 20:44 UTC25m
2026-06-23 N255KM - Jun 23, 15:15 UTCJun 23, 15:44 UTC30m
2026-06-22 N255KM - Jun 22, 16:05 UTCJun 22, 16:34 UTC30m
2026-06-22 N255KM - Jun 22, 13:39 UTCJun 22, 14:24 UTC45m
2026-06-17 N255KM - Jun 17, 20:05 UTCJun 17, 21:45 UTC1h 40m
2026-06-17 N255KM - Jun 17, 13:05 UTCJun 17, 14:05 UTC1h 0m
2026-06-17 N255KM - Jun 17, 12:10 UTCJun 17, 12:30 UTC20m
2026-06-16 N255KM - Jun 16, 10:55 UTCJun 16, 11:25 UTC30m
2026-06-14 N255KM - Jun 14, 15:45 UTCJun 14, 16:55 UTC1h 10m
2026-06-14 N255KM - Jun 14, 11:05 UTCJun 14, 12:15 UTC1h 10m
2026-06-12 N255KM - Jun 12, 23:40 UTCJun 13, 00:45 UTC1h 5m
2026-06-12 N255KM - Jun 12, 21:45 UTCJun 12, 23:00 UTC1h 15m
2026-06-12 N255KM - Jun 12, 17:10 UTCJun 12, 17:45 UTC35m
2026-06-12 N255KM - Jun 12, 15:40 UTCJun 12, 16:20 UTC40m
2026-06-12 N255KM - Jun 12, 14:05 UTCJun 12, 14:20 UTC15m
2026-06-03 N255KM - Jun 3, 18:05 UTCJun 3, 18:30 UTC25m
2026-06-02 N255KM - Jun 2, 14:05 UTCJun 2, 14:25 UTC20m
2026-05-31 N255KM - May 31, 17:05 UTCMay 31, 18:25 UTC1h 20m
2026-05-29 N255KM - May 29, 12:45 UTCMay 29, 14:05 UTC1h 20m
2026-05-28 N255KM - May 28, 17:15 UTCMay 28, 18:00 UTC45m
2026-05-28 N255KM - May 28, 15:50 UTCMay 28, 16:40 UTC50m
2026-05-28 N255KM - May 28, 13:15 UTCMay 28, 14:15 UTC1h 0m
2026-05-28 N255KM - May 28, 11:15 UTCMay 28, 12:20 UTC1h 5m
2026-05-23 N255KM - May 23, 00:00 UTCMay 23, 00:25 UTC25m
2026-05-22 N255KM - May 22, 17:25 UTCMay 22, 17:45 UTC20m
2026-05-20 N255KM - May 20, 21:15 UTCMay 20, 21:55 UTC40m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N255KM page for operator, model, and routing details .

Mode-S A26AFE frequently asked

What is Mode-S code A26AFE?
A26AFE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N255KM.
Where is Mode-S A26AFE registered?
Mode-S code A26AFE is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A26AFE broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 01:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A26AFE, octal 50465376, decimal 10,644,222.
What flights does A26AFE operate?
Mode-S A26AFE has broadcast 1 distinct callsign, including N255KM.