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 13d ago
Flights observed
105
Distinct callsigns
20
Country
US
Last broadcast
13d 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 20 distinct

Callsign Airline Flights Last seen
AER901 Alaska Central Express 16 2026-06-04
AER910 Alaska Central Express 15 2026-06-07
AER930 - 10 2026-06-30
AER902 Alaska Central Express 10 2026-06-14
AER971 Alaska Central Express 8 2026-06-12
AER121 Alaska Central Express 8 2026-06-03
AER123 - 7 2026-06-24
AER970 Alaska Central Express 4 2026-06-09
AER912 Alaska Central Express 4 2026-06-03
AER903 Alaska Central Express 4 2026-06-11
AER103 - 4 2026-06-02
AERT8 - 3 2026-05-28
AER972 Alaska Central Express 2 2026-06-05
AER956 - 2 2026-06-20
AER955 - 2 2026-06-16
AER31 - 2 2026-06-23
AERT4 - 1 2026-05-07
AER999 - 1 2026-06-17
AER99 - 1 2026-06-18
AER907 - 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-30 AER930 AKN → ANC Jun 30, 21:50 UTCJun 30, 22:50 UTC1h 0m
2026-06-30 AER930 - Jun 30, 19:25 UTCJun 30, 20:35 UTC1h 10m
2026-06-27 AER930 AKN → ANC Jun 27, 21:59 UTCJun 27, 23:04 UTC1h 5m
2026-06-27 AER930 - Jun 27, 19:24 UTCJun 27, 20:39 UTC1h 15m
2026-06-24 AER123 - Jun 24, 20:24 UTCJun 24, 21:40 UTC1h 15m
2026-06-24 AER123 - Jun 24, 19:55 UTCJun 24, 20:14 UTC20m
2026-06-24 AER123 - Jun 24, 17:55 UTCJun 24, 18:20 UTC25m
2026-06-24 AER123 ANC → FAI Jun 24, 16:29 UTCJun 24, 17:29 UTC1h 0m
2026-06-23 AER930 - Jun 23, 21:45 UTCJun 23, 23:05 UTC1h 20m
2026-06-23 AER930 - Jun 23, 19:39 UTCJun 23, 20:44 UTC1h 5m
2026-06-23 AER31 - Jun 23, 16:14 UTCJun 23, 17:39 UTC1h 25m
2026-06-23 AER31 - Jun 23, 13:34 UTCJun 23, 15:24 UTC1h 50m
2026-06-21 AER930 AKN → ANC Jun 21, 01:19 UTCJun 21, 02:20 UTC1h 0m
2026-06-20 AER930 ANC → AKN Jun 20, 23:29 UTCJun 21, 00:34 UTC1h 5m
2026-06-20 AER956 - Jun 20, 20:20 UTCJun 20, 20:45 UTC25m
2026-06-20 AER956 - Jun 20, 18:24 UTCJun 20, 19:34 UTC1h 10m
2026-06-19 AER930 - Jun 19, 21:49 UTCJun 19, 23:00 UTC1h 10m
2026-06-19 AER930 ANC → AKN Jun 19, 20:19 UTCJun 19, 21:24 UTC1h 5m
2026-06-18 AER99 ANC → ANC Jun 18, 16:45 UTCJun 18, 17:15 UTC30m
2026-06-18 AER123 - Jun 18, 00:05 UTCJun 18, 01:05 UTC1h 0m
2026-06-17 AER123 - Jun 17, 23:25 UTCJun 17, 23:45 UTC20m
2026-06-17 AER123 - Jun 17, 21:25 UTCJun 17, 21:50 UTC25m
2026-06-17 AER999 ANC → FAI Jun 17, 19:55 UTCJun 17, 20:55 UTC1h 0m
2026-06-16 AER955 - Jun 16, 01:04 UTCJun 16, 02:20 UTC1h 15m
2026-06-15 AER955 - Jun 15, 23:09 UTCJun 16, 00:24 UTC1h 15m
2026-06-14 AER902 ANC → DUT Jun 14, 00:50 UTCJun 14, 02:35 UTC1h 45m
2026-06-13 AER902 ANC → DUT Jun 13, 19:35 UTCJun 13, 21:05 UTC1h 30m
2026-06-13 AER902 ANC → DUT Jun 13, 01:45 UTCJun 13, 03:30 UTC1h 45m
2026-06-12 AER902 ANC → DUT Jun 12, 21:10 UTCJun 12, 21:50 UTC40m
2026-06-12 AER902 ANC → DUT Jun 12, 19:40 UTCJun 12, 20:45 UTC1h 5m
2026-06-12 AER971 ANC → CDB Jun 12, 00:10 UTCJun 12, 00:45 UTC36m
2026-06-11 AER971 ANC → CDB Jun 11, 23:25 UTCJun 11, 23:55 UTC30m
2026-06-11 AER907 - Jun 11, 18:05 UTCJun 11, 21:00 UTC2h 55m
2026-06-11 AER903 ANC → DUT Jun 11, 01:20 UTCJun 11, 03:00 UTC1h 40m
2026-06-10 AER903 ANC → DUT Jun 10, 20:05 UTCJun 10, 21:50 UTC1h 45m
2026-06-09 AER970 BRW → ANC Jun 9, 00:05 UTCJun 9, 00:35 UTC30m
2026-06-08 AER970 BRW → ANC Jun 8, 23:15 UTCJun 8, 23:50 UTC35m
2026-06-07 AER902 ANC → DUT Jun 7, 21:00 UTCJun 7, 22:35 UTC1h 35m
2026-06-07 AER902 ANC → DUT Jun 7, 15:55 UTCJun 7, 17:40 UTC1h 45m
2026-06-07 AER910 ANC → DUT Jun 7, 04:45 UTCJun 7, 06:15 UTC1h 30m
2026-06-06 AER910 ANC → DUT Jun 6, 23:19 UTCJun 7, 01:09 UTC1h 50m
2026-06-05 AER972 ANC → CDB Jun 5, 23:35 UTCJun 6, 00:05 UTC30m
2026-06-05 AER972 ANC → CDB Jun 5, 22:45 UTCJun 5, 23:20 UTC35m
2026-06-05 AER971 ANC → CDB Jun 5, 19:15 UTCJun 5, 20:15 UTC1h 0m
2026-06-05 AER971 ANC → CDB Jun 5, 17:40 UTCJun 5, 19:00 UTC1h 20m
2026-06-05 AER910 ANC → DUT Jun 5, 02:40 UTCJun 5, 04:10 UTC1h 30m
2026-06-04 AER910 ANC → DUT Jun 4, 22:10 UTCJun 5, 00:00 UTC1h 50m
2026-06-04 AER901 DUT → ANC Jun 4, 17:55 UTCJun 4, 19:15 UTC1h 20m
2026-06-04 AER901 DUT → ANC Jun 4, 13:20 UTCJun 4, 15:10 UTC1h 50m
2026-06-04 AER910 ANC → DUT Jun 4, 04:30 UTCJun 4, 06:10 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 13d 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 20 distinct callsigns, including AER901, AER910, AER930, AER902, AER971.