sensors Mode-S transponder

AA9FF5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N784FX · operated by FEDERAL EXPRESS CORP

Hex
AA9FF5
Octal
52517765
Decimal
11,182,069
Country
US
Tail
N784FX
No current signal · last broadcast Jul 24, 13:00 UTC
Flights observed
69
Distinct callsigns
3
Country
US
Last broadcast
Jul 24, 13:00 UTC

Last known position

Most recent position reported by Mode-S AA9FF5.

Country allocation

The ICAO 24-bit address AA9FF5 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 3 distinct

Callsign Airline Flights Last seen
N784FX - 56 2026-07-24
BVN8278 - 12 2026-07-24
BVN7590 - 1 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N784FX - Jul 24, 11:35 UTCJul 24, 13:00 UTC1h 25m
2026-07-24 BVN8278 - Jul 24, 08:50 UTCJul 24, 10:10 UTC1h 20m
2026-07-23 N784FX - Jul 23, 11:15 UTCJul 23, 12:40 UTC1h 25m
2026-07-23 BVN8278 - Jul 23, 08:55 UTCJul 23, 10:20 UTC1h 25m
2026-07-22 N784FX - Jul 22, 11:30 UTCJul 22, 13:00 UTC1h 30m
2026-07-21 N784FX MAF → AFW Jul 21, 12:55 UTCJul 21, 14:15 UTC1h 20m
2026-07-21 BVN8278 - Jul 21, 09:05 UTCJul 21, 10:35 UTC1h 30m
2026-07-17 N784FX - Jul 17, 11:39 UTCJul 17, 13:05 UTC1h 25m
2026-07-17 BVN8278 - Jul 17, 08:54 UTCJul 17, 10:30 UTC1h 35m
2026-07-16 N784FX - Jul 16, 11:45 UTCJul 16, 13:15 UTC1h 30m
2026-07-16 BVN8278 - Jul 16, 09:45 UTCJul 16, 10:25 UTC40m
2026-07-16 BVN8278 - Jul 16, 08:45 UTCJul 16, 09:15 UTC30m
2026-07-15 N784FX - Jul 15, 22:55 UTCJul 16, 01:10 UTC2h 15m
2026-07-15 N784FX - Jul 15, 11:55 UTCJul 15, 13:20 UTC1h 25m
2026-07-15 BVN8278 - Jul 15, 08:45 UTCJul 15, 10:15 UTC1h 30m
2026-07-14 N784FX - Jul 14, 12:00 UTCJul 14, 13:25 UTC1h 25m
2026-07-14 BVN8278 - Jul 14, 09:00 UTCJul 14, 10:25 UTC1h 25m
2026-07-10 N784FX - Jul 10, 11:35 UTCJul 10, 12:55 UTC1h 20m
2026-07-10 BVN8278 - Jul 10, 09:00 UTCJul 10, 10:25 UTC1h 25m
2026-07-09 N784FX - Jul 9, 11:35 UTCJul 9, 12:55 UTC1h 20m
2026-07-09 BVN8278 - Jul 9, 08:55 UTCJul 9, 10:20 UTC1h 25m
2026-07-08 N784FX - Jul 8, 12:10 UTCJul 8, 13:30 UTC1h 20m
2026-07-08 BVN8278 - Jul 8, 08:50 UTCJul 8, 10:15 UTC1h 25m
2026-07-07 N784FX - Jul 7, 13:05 UTCJul 7, 14:35 UTC1h 30m
2026-07-07 BVN8278 - Jul 7, 08:55 UTCJul 7, 09:20 UTC25m
2026-07-06 N784FX - Jul 6, 06:30 UTCJul 6, 06:55 UTC25m
2026-07-06 N784FX - Jul 6, 04:15 UTCJul 6, 04:45 UTC30m
2026-07-03 BVN7590 - Jul 3, 23:35 UTCJul 4, 01:45 UTC2h 10m
2026-06-12 N784FX - Jun 12, 14:15 UTCJun 12, 16:30 UTC2h 15m
2026-06-07 N784FX - Jun 7, 03:05 UTCJun 7, 04:05 UTC1h 0m
2026-06-07 N784FX - Jun 7, 01:55 UTCJun 7, 02:30 UTC35m
2026-06-06 N784FX - Jun 6, 19:50 UTCJun 6, 21:35 UTC1h 45m
2026-06-06 N784FX - Jun 6, 18:19 UTCJun 6, 18:45 UTC25m
2026-06-06 N784FX - Jun 6, 17:05 UTCJun 6, 17:40 UTC35m
2026-06-06 N784FX - Jun 6, 14:25 UTCJun 6, 15:25 UTC1h 0m
2026-06-05 N784FX - Jun 5, 23:00 UTCJun 5, 23:40 UTC40m
2026-06-05 N784FX - Jun 5, 20:35 UTCJun 5, 21:10 UTC35m
2026-06-05 N784FX - Jun 5, 01:50 UTCJun 5, 02:55 UTC1h 5m
2026-06-05 N784FX - Jun 5, 00:30 UTCJun 5, 01:15 UTC45m
2026-06-04 N784FX - Jun 4, 23:40 UTCJun 5, 00:00 UTC20m
2026-06-04 N784FX - Jun 4, 21:15 UTCJun 4, 22:40 UTC1h 25m
2026-06-03 N784FX - Jun 3, 17:10 UTCJun 3, 19:20 UTC2h 10m
2026-05-01 N784FX - May 1, 17:35 UTCMay 1, 18:30 UTC55m
2026-04-29 N784FX - Apr 29, 13:40 UTCApr 29, 14:00 UTC20m
2026-04-28 N784FX - Apr 28, 22:10 UTCApr 28, 22:40 UTC30m
2026-04-28 N784FX - Apr 28, 15:30 UTCApr 28, 18:45 UTC3h 15m
2026-04-27 N784FX - Apr 27, 17:20 UTCApr 27, 19:35 UTC2h 15m
2026-04-27 N784FX - Apr 27, 01:15 UTCApr 27, 01:40 UTC25m
2026-04-27 N784FX - Apr 27, 00:05 UTCApr 27, 00:35 UTC30m
2026-04-26 N784FX - Apr 26, 22:05 UTCApr 26, 23:00 UTC55m

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 N784FX page for operator, model, and routing details .

Mode-S AA9FF5 frequently asked

What is Mode-S code AA9FF5?
AA9FF5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N784FX.
Where is Mode-S AA9FF5 registered?
Mode-S code AA9FF5 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 AA9FF5 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 13:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9FF5, octal 52517765, decimal 11,182,069.
What flights does AA9FF5 operate?
Mode-S AA9FF5 has broadcast 3 distinct callsigns, including N784FX, BVN8278, BVN7590.