Apparatus

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sensors Mode-S transponder

A1FE4A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N22765 · CESSNA 150 · operated by CFUC INC

Hex
A1FE4A
Octal
50377112
Decimal
10,616,394
Country
US
Tail
N22765
Type
C150
No current signal · last broadcast 3d ago
Flights observed
60
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A1FE4A.

Country allocation

The ICAO 24-bit address A1FE4A 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
N22765 - 60 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 N22765 DVT → DVT Jul 10, 15:00 UTCJul 10, 17:10 UTC2h 10m
2026-07-09 N22765 DVT → DVT Jul 9, 17:45 UTCJul 9, 19:00 UTC1h 15m
2026-07-08 N22765 DVT → DVT Jul 8, 15:20 UTCJul 8, 18:00 UTC2h 40m
2026-07-04 N22765 - Jul 4, 03:45 UTCJul 4, 04:20 UTC35m
2026-07-03 N22765 - Jul 3, 14:30 UTCJul 3, 15:30 UTC1h 0m
2026-07-02 N22765 DVT → DVT Jul 2, 04:25 UTCJul 2, 05:35 UTC1h 10m
2026-06-28 N22765 - Jun 28, 04:59 UTCJun 28, 07:05 UTC2h 5m
2026-06-26 N22765 DVT → DVT Jun 26, 13:40 UTCJun 26, 14:44 UTC1h 5m
2026-06-25 N22765 - Jun 25, 13:59 UTCJun 25, 14:20 UTC20m
2026-06-25 N22765 DVT → DVT Jun 25, 13:14 UTCJun 25, 13:50 UTC35m
2026-06-24 N22765 DVT → DVT Jun 24, 15:35 UTCJun 24, 16:29 UTC55m
2026-06-24 N22765 - Jun 24, 06:20 UTCJun 24, 07:30 UTC1h 10m
2026-06-24 N22765 - Jun 24, 03:19 UTCJun 24, 04:05 UTC45m
2026-06-23 N22765 - Jun 23, 23:19 UTCJun 24, 00:09 UTC50m
2026-06-23 N22765 - Jun 23, 22:15 UTCJun 23, 22:44 UTC30m
2026-06-23 N22765 - Jun 23, 20:34 UTCJun 23, 21:39 UTC1h 5m
2026-06-23 N22765 - Jun 23, 18:55 UTCJun 23, 20:29 UTC1h 35m
2026-06-22 N22765 - Jun 22, 20:55 UTCJun 23, 00:39 UTC3h 45m
2026-06-22 N22765 - Jun 22, 18:19 UTCJun 22, 20:10 UTC1h 50m
2026-06-22 N22765 - Jun 22, 14:14 UTCJun 22, 16:20 UTC2h 5m
2026-06-21 N22765 BXK → DVT Jun 21, 16:04 UTCJun 21, 16:44 UTC40m
2026-06-21 N22765 BXK → BXK Jun 21, 13:00 UTCJun 21, 14:10 UTC1h 10m
2026-06-19 N22765 DVT → BXK Jun 19, 10:24 UTCJun 19, 11:04 UTC40m
2026-06-16 N22765 BXK → DVT Jun 16, 01:10 UTCJun 16, 01:45 UTC35m
2026-06-15 N22765 DVT → BXK Jun 15, 16:35 UTCJun 15, 17:10 UTC35m
2026-06-12 N22765 BXK → DVT Jun 12, 18:45 UTCJun 12, 19:25 UTC40m
2026-06-04 N22765 - Jun 4, 23:00 UTCJun 4, 23:40 UTC40m
2026-06-04 N22765 DVT → DVT Jun 4, 12:30 UTCJun 4, 13:10 UTC40m
2026-06-03 N22765 - Jun 3, 13:50 UTCJun 3, 15:10 UTC1h 20m
2026-06-01 N22765 DVT → DVT Jun 1, 16:45 UTCJun 1, 17:00 UTC15m
2026-05-25 N22765 - May 25, 15:50 UTCMay 25, 16:45 UTC55m
2026-05-25 N22765 - May 25, 15:25 UTCMay 25, 15:45 UTC20m
2026-05-24 N22765 - May 24, 16:40 UTCMay 24, 18:20 UTC1h 40m
2026-05-14 N22765 - May 14, 15:20 UTCMay 14, 16:10 UTC50m
2026-05-13 N22765 - May 13, 14:45 UTCMay 13, 16:55 UTC2h 10m
2026-05-10 N22765 DVT → DVT May 10, 15:24 UTCMay 10, 16:25 UTC1h 0m
2026-05-10 N22765 BXK → DVT May 10, 01:09 UTCMay 10, 01:39 UTC30m
2026-05-09 N22765 DVT → BXK May 9, 16:05 UTCMay 9, 16:50 UTC45m
2026-05-08 N22765 - May 8, 15:50 UTCMay 8, 16:55 UTC1h 5m
2026-05-07 N22765 - May 7, 05:10 UTCMay 7, 05:25 UTC15m
2026-05-07 N22765 - May 7, 03:40 UTCMay 7, 04:55 UTC1h 15m
2026-05-07 N22765 - May 7, 01:10 UTCMay 7, 02:35 UTC1h 25m
2026-05-06 N22765 - May 6, 15:10 UTCMay 6, 16:40 UTC1h 30m
2026-05-04 N22765 - May 4, 22:40 UTCMay 5, 01:15 UTC2h 35m
2026-05-04 N22765 - May 4, 16:20 UTCMay 4, 17:00 UTC40m
2026-05-02 N22765 - May 2, 18:25 UTCMay 2, 19:00 UTC35m
2026-05-02 N22765 - May 2, 16:30 UTCMay 2, 17:10 UTC40m
2026-05-02 N22765 - May 2, 15:10 UTCMay 2, 15:50 UTC40m
2026-05-01 N22765 - May 1, 14:00 UTCMay 1, 15:25 UTC1h 25m
2026-04-30 N22765 DVT → DVT Apr 30, 14:10 UTCApr 30, 15:40 UTC1h 30m

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 N22765 page for operator, model, and routing details .

Mode-S A1FE4A frequently asked

What is Mode-S code A1FE4A?
A1FE4A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N22765.
Where is Mode-S A1FE4A registered?
Mode-S code A1FE4A 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 A1FE4A broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1FE4A, octal 50377112, decimal 10,616,394.
What flights does A1FE4A operate?
Mode-S A1FE4A has broadcast 1 distinct callsign, including N22765.