Apparatus

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sensors Mode-S transponder

A23783

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N242AX · BEECH 1900 · operated by TAILWIND INVESTMENTS LLC

Hex
A23783
Octal
50433603
Decimal
10,631,043
Country
US
Tail
N242AX
Type
B190
No current signal · last broadcast 1d ago
Flights observed
40
Distinct callsigns
8
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A23783.

Country allocation

The ICAO 24-bit address A23783 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 8 distinct

Callsign Airline Flights Last seen
AER901 Alaska Central Express 14 2026-04-16
AER910 Alaska Central Express 9 2026-04-20
AER971 Alaska Central Express 4 2026-05-22
AER121 Alaska Central Express 4 2026-05-13
AERT8 - 3 2026-05-28
AER902 Alaska Central Express 3 2026-04-24
AER912 Alaska Central Express 2 2026-04-26
AERT4 - 1 2026-05-07

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-05-28 AERT8 ANC → ANC May 28, 22:45 UTCMay 28, 23:50 UTC1h 5m
2026-05-22 AER971 ANC → CDB May 22, 20:05 UTCMay 22, 20:50 UTC45m
2026-05-22 AER971 ANC → CDB May 22, 18:10 UTCMay 22, 18:50 UTC40m
2026-05-22 AER971 ANC → CDB May 22, 16:35 UTCMay 22, 17:20 UTC45m
2026-05-22 AER971 ANC → CDB May 22, 14:40 UTCMay 22, 15:20 UTC40m
2026-05-13 AER121 FAI → ANC May 13, 21:10 UTCMay 13, 22:20 UTC1h 10m
2026-05-13 AER121 FAI → ANC May 13, 20:40 UTCMay 13, 21:00 UTC20m
2026-05-13 AER121 FAI → ANC May 13, 18:45 UTCMay 13, 19:05 UTC20m
2026-05-13 AER121 FAI → ANC May 13, 17:30 UTCMay 13, 18:25 UTC55m
2026-05-07 AERT4 - May 7, 02:15 UTCMay 7, 03:25 UTC1h 10m
2026-05-06 AERT8 - May 6, 23:55 UTCMay 7, 01:30 UTC1h 35m
2026-05-03 AERT8 ANC → ANC May 3, 21:50 UTCMay 3, 23:45 UTC1h 55m
2026-04-26 AER912 ANC → CDB Apr 26, 01:00 UTCApr 26, 02:35 UTC1h 35m
2026-04-25 AER912 ANC → CDB Apr 25, 20:40 UTCApr 25, 22:20 UTC1h 40m
2026-04-24 AER902 ANC → DUT Apr 24, 09:15 UTCApr 24, 09:20 UTC5m
2026-04-22 AER902 ANC → DUT Apr 22, 22:55 UTCApr 23, 00:30 UTC1h 35m
2026-04-22 AER902 ANC → DUT Apr 22, 18:10 UTCApr 22, 20:05 UTC1h 55m
2026-04-20 AER910 ANC → DUT Apr 20, 03:15 UTCApr 20, 04:45 UTC1h 30m
2026-04-19 AER910 ANC → DUT Apr 19, 21:05 UTCApr 19, 23:15 UTC2h 10m
2026-04-17 AER910 ANC → DUT Apr 17, 03:20 UTCApr 17, 03:40 UTC20m
2026-04-17 AER910 ANC → DUT Apr 17, 02:15 UTCApr 17, 03:15 UTC1h 0m
2026-04-16 AER910 ANC → DUT Apr 16, 21:30 UTCApr 16, 23:10 UTC1h 40m
2026-04-16 AER901 DUT → ANC Apr 16, 19:15 UTCApr 16, 19:30 UTC15m
2026-04-16 AER901 DUT → ANC Apr 16, 18:05 UTCApr 16, 19:10 UTC1h 5m
2026-04-16 AER901 DUT → ANC Apr 16, 13:15 UTCApr 16, 15:00 UTC1h 45m
2026-04-16 AER901 DUT → ANC Apr 16, 13:00 UTCApr 16, 13:05 UTC5m
2026-04-16 AER910 ANC → DUT Apr 16, 03:09 UTCApr 16, 04:00 UTC50m
2026-04-16 AER910 ANC → DUT Apr 16, 02:40 UTCApr 16, 03:04 UTC25m
2026-04-15 AER910 ANC → DUT Apr 15, 23:10 UTCApr 16, 00:05 UTC55m
2026-04-15 AER910 ANC → DUT Apr 15, 22:10 UTCApr 15, 23:00 UTC50m
2026-04-15 AER901 DUT → ANC Apr 15, 19:05 UTCApr 15, 19:30 UTC25m
2026-04-15 AER901 DUT → ANC Apr 15, 17:50 UTCApr 15, 19:00 UTC1h 10m
2026-04-15 AER901 DUT → ANC Apr 15, 13:01 UTCApr 15, 14:55 UTC1h 54m
2026-04-15 AER901 DUT → ANC Apr 15, 12:40 UTCApr 15, 12:45 UTC5m
2026-04-14 AER901 DUT → ANC Apr 14, 18:55 UTCApr 14, 19:15 UTC20m
2026-04-14 AER901 DUT → ANC Apr 14, 17:45 UTCApr 14, 18:45 UTC1h 0m
2026-04-14 AER901 DUT → ANC Apr 14, 12:50 UTCApr 14, 14:15 UTC1h 25m
2026-04-14 AER901 DUT → ANC Apr 14, 12:25 UTCApr 14, 12:45 UTC20m
2026-04-14 AER901 DUT → ANC Apr 14, 12:10 UTCApr 14, 12:15 UTC5m
2026-04-12 AER901 DUT → ANC Apr 12, 18:00 UTCApr 12, 19:40 UTC1h 40m

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 N242AX page for operator, model, and routing details .

Mode-S A23783 frequently asked

What is Mode-S code A23783?
A23783 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N242AX.
Where is Mode-S A23783 registered?
Mode-S code A23783 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 A23783 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23783, octal 50433603, decimal 10,631,043.
What flights does A23783 operate?
Mode-S A23783 has broadcast 8 distinct callsigns, including AER901, AER910, AER971, AER121, AERT8.