Apparatus

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sensors Mode-S transponder

A1F23C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2240G · PIPER PA-28-140/150/160/180 · operated by THUNDERBIRD AIRCRAFT COMPANY

Hex
A1F23C
Octal
50371074
Decimal
10,613,308
Country
US
Tail
N2240G
Type
P28A
No current signal · last broadcast May 13, 21:40 UTC
Flights observed
72
Distinct callsigns
1
Country
US
Last broadcast
May 13, 21:40 UTC

Last known position

Most recent position reported by Mode-S A1F23C.

Country allocation

The ICAO 24-bit address A1F23C 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
N2240G - 72 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-13 N2240G MIC → MIC May 13, 20:55 UTCMay 13, 21:40 UTC45m
2026-05-13 N2240G MIC → MIC May 13, 14:45 UTCMay 13, 16:05 UTC1h 20m
2026-05-12 N2240G - May 12, 16:30 UTCMay 12, 17:10 UTC40m
2026-05-11 N2240G MIC → MIC May 11, 18:55 UTCMay 11, 20:30 UTC1h 35m
2026-05-11 N2240G MIC → MIC May 11, 16:15 UTCMay 11, 16:40 UTC25m
2026-05-11 N2240G MIC → MIC May 11, 15:05 UTCMay 11, 15:30 UTC25m
2026-05-09 N2240G - May 9, 22:55 UTCMay 9, 23:55 UTC1h 0m
2026-05-09 N2240G - May 9, 16:25 UTCMay 9, 17:00 UTC35m
2026-05-09 N2240G MIC → MIC May 9, 14:45 UTCMay 9, 15:50 UTC1h 5m
2026-05-08 N2240G MIC → MIC May 8, 22:45 UTCMay 8, 23:35 UTC50m
2026-05-08 N2240G - May 8, 19:45 UTCMay 8, 20:40 UTC55m
2026-05-08 N2240G - May 8, 17:15 UTCMay 8, 18:45 UTC1h 30m
2026-05-08 N2240G - May 8, 14:45 UTCMay 8, 16:15 UTC1h 30m
2026-05-08 N2240G MIC → MIC May 8, 02:24 UTCMay 8, 04:00 UTC1h 35m
2026-05-07 N2240G - May 7, 20:45 UTCMay 7, 21:15 UTC30m
2026-05-07 N2240G - May 7, 18:40 UTCMay 7, 19:50 UTC1h 10m
2026-05-07 N2240G MIC → MIC May 7, 14:40 UTCMay 7, 15:50 UTC1h 10m
2026-05-06 N2240G - May 6, 22:55 UTCMay 6, 23:45 UTC50m
2026-05-06 N2240G MIC → MIC May 6, 20:45 UTCMay 6, 22:00 UTC1h 15m
2026-05-06 N2240G MIC → MIC May 6, 16:40 UTCMay 6, 17:10 UTC30m
2026-05-05 N2240G MIC → MIC May 5, 16:35 UTCMay 5, 17:30 UTC55m
2026-05-05 N2240G MIC → MIC May 5, 14:55 UTCMay 5, 15:50 UTC55m
2026-05-01 N2240G - May 1, 20:40 UTCMay 1, 21:15 UTC35m
2026-05-01 N2240G - May 1, 16:30 UTCMay 1, 19:00 UTC2h 30m
2026-05-01 N2240G - May 1, 14:35 UTCMay 1, 15:45 UTC1h 10m
2026-05-01 N2240G MIC → MIC May 1, 12:50 UTCMay 1, 13:45 UTC55m
2026-05-01 N2240G - May 1, 02:15 UTCMay 1, 03:20 UTC1h 5m
2026-04-30 N2240G - Apr 30, 22:55 UTCApr 30, 23:40 UTC45m
2026-04-30 N2240G - Apr 30, 16:50 UTCApr 30, 17:50 UTC1h 0m
2026-04-30 N2240G - Apr 30, 14:35 UTCApr 30, 16:00 UTC1h 25m
2026-04-30 N2240G - Apr 30, 02:20 UTCApr 30, 03:35 UTC1h 15m
2026-04-29 N2240G MIC → MIC Apr 29, 23:10 UTCApr 29, 23:45 UTC35m
2026-04-29 N2240G MIC → MIC Apr 29, 18:50 UTCApr 29, 20:00 UTC1h 10m
2026-04-29 N2240G - Apr 29, 14:55 UTCApr 29, 16:10 UTC1h 15m
2026-04-28 N2240G - Apr 28, 22:30 UTCApr 29, 00:05 UTC1h 35m
2026-04-28 N2240G MIC → MIC Apr 28, 20:40 UTCApr 28, 21:45 UTC1h 5m
2026-04-28 N2240G - Apr 28, 17:05 UTCApr 28, 19:10 UTC2h 5m
2026-04-26 N2240G MIC → MIC Apr 26, 20:00 UTCApr 26, 20:55 UTC55m
2026-04-26 N2240G MIC → MIC Apr 26, 18:35 UTCApr 26, 19:05 UTC30m
2026-04-26 N2240G - Apr 26, 02:00 UTCApr 26, 02:30 UTC30m
2026-04-25 N2240G MIC → FCM Apr 25, 16:40 UTCApr 25, 17:05 UTC25m
2026-04-25 N2240G - Apr 25, 15:05 UTCApr 25, 15:55 UTC50m
2026-04-24 N2240G - Apr 24, 20:45 UTCApr 24, 22:00 UTC1h 15m
2026-04-24 N2240G - Apr 24, 19:00 UTCApr 24, 19:55 UTC55m
2026-04-24 N2240G - Apr 24, 17:00 UTCApr 24, 17:45 UTC45m
2026-04-22 N2240G MIC → MIC Apr 22, 20:50 UTCApr 22, 21:40 UTC50m
2026-04-22 N2240G MIC → MIC Apr 22, 14:50 UTCApr 22, 16:50 UTC2h 0m
2026-04-21 N2240G - Apr 21, 23:50 UTCApr 22, 00:35 UTC45m
2026-04-21 N2240G - Apr 21, 22:10 UTCApr 21, 23:00 UTC50m
2026-04-21 N2240G - Apr 21, 19:50 UTCApr 21, 20:40 UTC50m

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 N2240G page for operator, model, and routing details .

Mode-S A1F23C frequently asked

What is Mode-S code A1F23C?
A1F23C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2240G.
Where is Mode-S A1F23C registered?
Mode-S code A1F23C 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 A1F23C broadcasting right now?
No active broadcast right now. Last signal was May 13, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F23C, octal 50371074, decimal 10,613,308.
What flights does A1F23C operate?
Mode-S A1F23C has broadcast 1 distinct callsign, including N2240G.