Apparatus

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sensors Mode-S transponder

A24AA1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N247GL · BEECH 1900 · operated by ALPINE AVIATION INC

Hex
A24AA1
Octal
50445241
Decimal
10,635,937
Country
US
Tail
N247GL
Type
B190
No current signal · last broadcast 4h ago
Flights observed
78
Distinct callsigns
4
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A24AA1.

Country allocation

The ICAO 24-bit address A24AA1 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 4 distinct

Callsign Airline Flights Last seen
AIP1566 Alpine Air Express 32 2026-05-29
AIP1565 Alpine Air Express 32 2026-05-29
AIP1408 Alpine Air Express 7 2026-05-26
AIP1407 Alpine Air Express 7 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AIP1566 XWA → FAR May 29, 23:50 UTCMay 30, 00:35 UTC45m
2026-05-29 AIP1565 FAR → XWA May 29, 12:20 UTCMay 29, 13:00 UTC40m
2026-05-29 AIP1566 XWA → FAR May 29, 00:00 UTCMay 29, 00:40 UTC40m
2026-05-28 AIP1565 FAR → XWA May 28, 12:20 UTCMay 28, 12:55 UTC35m
2026-05-27 AIP1566 XWA → FAR May 27, 23:50 UTCMay 28, 00:30 UTC40m
2026-05-27 AIP1565 FAR → XWA May 27, 12:25 UTCMay 27, 13:05 UTC40m
2026-05-26 AIP1407 MOT → FAR May 26, 23:29 UTCMay 27, 00:00 UTC30m
2026-05-26 AIP1408 FAR → XWA May 26, 21:40 UTCMay 26, 22:15 UTC35m
2026-05-23 AIP1408 FAR → XWA May 23, 13:55 UTCMay 23, 14:30 UTC35m
2026-05-23 AIP1408 FAR → XWA May 23, 12:20 UTCMay 23, 12:55 UTC35m
2026-05-22 AIP1407 MOT → FAR May 22, 23:35 UTCMay 23, 00:10 UTC35m
2026-05-22 AIP1408 FAR → XWA May 22, 11:45 UTCMay 22, 12:15 UTC30m
2026-05-21 AIP1407 MOT → FAR May 21, 23:30 UTCMay 22, 00:05 UTC35m
2026-05-21 AIP1408 FAR → XWA May 21, 12:00 UTCMay 21, 12:35 UTC35m
2026-05-20 AIP1407 MOT → FAR May 20, 23:20 UTCMay 20, 23:55 UTC35m
2026-05-20 AIP1408 FAR → XWA May 20, 12:35 UTCMay 20, 13:10 UTC35m
2026-05-19 AIP1407 MOT → FAR May 19, 23:25 UTCMay 19, 23:55 UTC30m
2026-05-19 AIP1408 FAR → XWA May 19, 13:05 UTCMay 19, 13:40 UTC35m
2026-05-18 AIP1407 MOT → FAR May 18, 23:30 UTCMay 19, 00:10 UTC40m
2026-05-18 AIP1407 MOT → FAR May 18, 21:45 UTCMay 18, 22:25 UTC40m
2026-05-16 AIP1566 XWA → FAR May 16, 15:20 UTCMay 16, 15:50 UTC30m
2026-05-16 AIP1565 FAR → XWA May 16, 12:25 UTCMay 16, 12:45 UTC20m
2026-05-15 AIP1566 XWA → FAR May 15, 23:50 UTCMay 16, 00:25 UTC35m
2026-05-15 AIP1565 FAR → XWA May 15, 11:45 UTCMay 15, 12:35 UTC50m
2026-05-15 AIP1566 XWA → FAR May 15, 00:05 UTCMay 15, 00:35 UTC30m
2026-05-14 AIP1565 FAR → XWA May 14, 12:00 UTCMay 14, 12:40 UTC40m
2026-05-14 AIP1566 XWA → FAR May 14, 00:00 UTCMay 14, 00:35 UTC35m
2026-05-13 AIP1565 FAR → XWA May 13, 12:05 UTCMay 13, 12:45 UTC40m
2026-05-13 AIP1566 XWA → FAR May 13, 00:00 UTCMay 13, 00:40 UTC40m
2026-05-12 AIP1565 FAR → XWA May 12, 12:15 UTCMay 12, 12:55 UTC40m
2026-05-11 AIP1565 FAR → XWA May 11, 21:20 UTCMay 11, 22:00 UTC40m
2026-05-09 AIP1566 XWA → FAR May 9, 15:20 UTCMay 9, 15:55 UTC35m
2026-05-09 AIP1565 FAR → XWA May 9, 12:45 UTCMay 9, 13:35 UTC50m
2026-05-08 AIP1566 XWA → FAR May 8, 23:50 UTCMay 9, 00:25 UTC35m
2026-05-08 AIP1565 FAR → XWA May 8, 12:00 UTCMay 8, 12:44 UTC45m
2026-05-07 AIP1566 XWA → FAR May 7, 23:55 UTCMay 8, 00:29 UTC35m
2026-05-07 AIP1565 FAR → XWA May 7, 12:10 UTCMay 7, 12:50 UTC40m
2026-05-06 AIP1566 XWA → FAR May 6, 23:50 UTCMay 7, 00:20 UTC30m
2026-05-06 AIP1565 FAR → XWA May 6, 12:20 UTCMay 6, 13:00 UTC40m
2026-05-05 AIP1566 XWA → FAR May 5, 23:45 UTCMay 6, 00:20 UTC35m
2026-05-05 AIP1565 FAR → XWA May 5, 12:10 UTCMay 5, 12:50 UTC40m
2026-05-04 AIP1566 XWA → FAR May 4, 23:55 UTCMay 5, 00:30 UTC35m
2026-05-04 AIP1565 FAR → XWA May 4, 21:30 UTCMay 4, 22:15 UTC45m
2026-05-02 AIP1566 XWA → FAR May 2, 14:45 UTCMay 2, 15:15 UTC30m
2026-05-02 AIP1565 FAR → XWA May 2, 12:30 UTCMay 2, 12:45 UTC15m
2026-05-01 AIP1566 XWA → FAR May 1, 23:55 UTCMay 2, 00:25 UTC30m
2026-05-01 AIP1565 FAR → XWA May 1, 11:55 UTCMay 1, 12:30 UTC35m
2026-04-30 AIP1566 XWA → FAR Apr 30, 23:55 UTCMay 1, 00:35 UTC40m
2026-04-30 AIP1565 FAR → XWA Apr 30, 11:50 UTCApr 30, 12:25 UTC35m
2026-04-30 AIP1566 XWA → FAR Apr 30, 00:10 UTCApr 30, 00:40 UTC30m

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 N247GL page for operator, model, and routing details .

Mode-S A24AA1 frequently asked

What is Mode-S code A24AA1?
A24AA1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N247GL.
Where is Mode-S A24AA1 registered?
Mode-S code A24AA1 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 A24AA1 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A24AA1, octal 50445241, decimal 10,635,937.
What flights does A24AA1 operate?
Mode-S A24AA1 has broadcast 4 distinct callsigns, including AIP1566, AIP1565, AIP1408, AIP1407.