Apparatus

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sensors Mode-S transponder

A24A16

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N247AX · BEECH 1900 · operated by TAILWIND INVESTMENTS LLC

Hex
A24A16
Octal
50445026
Decimal
10,635,798
Country
US
Tail
N247AX
Type
B190
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
222
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A24A16.

Country allocation

The ICAO 24-bit address A24A16 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
AER42 - 19 2026-07-16
AER912 Alaska Central Express 16 2026-06-25
AER930 Alaska Central Express 14 2026-07-23
AER970 - 13 2026-07-20
AER121 Alaska Central Express 12 2026-07-08
AERT8 - 10 2026-05-29
AER971 Alaska Central Express 10 2026-07-25
AER902 Alaska Central Express 10 2026-06-06
AER955 Alaska Central Express 8 2026-07-25
AER913 Alaska Central Express 8 2026-06-09
AER901 Alaska Central Express 8 2026-06-08
AER180 Alaska Central Express 8 2026-07-21
AER170 Alaska Central Express 8 2026-07-24
AER99 - 7 2026-06-16
AER985 Alaska Central Express 5 2026-07-26
AER926 - 5 2026-07-22
AER921 - 5 2026-07-24
AER907 - 5 2026-07-12
AERT2 - 4 2026-05-29
AER972 Alaska Central Express 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AER985 ANC → DLG Jul 26, 21:00 UTCJul 26, 21:30 UTC30m
2026-07-26 AER985 ANC → DLG Jul 26, 19:15 UTCJul 26, 20:20 UTC1h 5m
2026-07-26 AER985 ANC → DLG Jul 26, 18:10 UTCJul 26, 18:15 UTC5m
2026-07-25 AER971 ANC → CDB Jul 25, 22:50 UTCJul 25, 23:50 UTC1h 0m
2026-07-25 AER971 ANC → CDB Jul 25, 21:00 UTCJul 25, 22:05 UTC1h 5m
2026-07-25 AER955 ANC → DLG Jul 25, 19:00 UTCJul 25, 20:05 UTC1h 5m
2026-07-25 AER955 ANC → DLG Jul 25, 17:05 UTCJul 25, 18:25 UTC1h 20m
2026-07-25 AER972 ANC → CDB Jul 25, 02:00 UTCJul 25, 03:15 UTC1h 15m
2026-07-25 AER972 ANC → CDB Jul 25, 00:45 UTCJul 25, 01:45 UTC1h 0m
2026-07-24 AER170 ANC → HOM Jul 24, 23:35 UTCJul 25, 00:10 UTC35m
2026-07-24 AER170 ANC → HOM Jul 24, 22:40 UTCJul 24, 23:10 UTC30m
2026-07-24 AER921 - Jul 24, 17:35 UTCJul 24, 18:55 UTC1h 20m
2026-07-24 AER921 - Jul 24, 15:30 UTCJul 24, 16:55 UTC1h 25m
2026-07-24 AER976 ANC → AKN Jul 24, 02:45 UTCJul 24, 03:55 UTC1h 10m
2026-07-24 AER976 ANC → AKN Jul 24, 01:00 UTCJul 24, 02:15 UTC1h 15m
2026-07-23 AER930 ANC → AKN Jul 23, 22:50 UTCJul 24, 00:00 UTC1h 10m
2026-07-23 AER930 ANC → AKN Jul 23, 21:00 UTCJul 23, 22:10 UTC1h 10m
2026-07-23 AER971 ANC → CDB Jul 23, 02:45 UTCJul 23, 03:40 UTC55m
2026-07-23 AER971 ANC → CDB Jul 23, 01:05 UTCJul 23, 02:25 UTC1h 20m
2026-07-22 AER926 - Jul 22, 23:25 UTCJul 23, 00:30 UTC1h 5m
2026-07-22 AER926 - Jul 22, 17:55 UTCJul 22, 19:15 UTC1h 20m
2026-07-22 AER975 ANC → AKN Jul 22, 02:30 UTCJul 22, 03:40 UTC1h 10m
2026-07-22 AER975 ANC → AKN Jul 22, 00:45 UTCJul 22, 02:10 UTC1h 25m
2026-07-21 AER170 ANC → HOM Jul 21, 23:35 UTCJul 22, 00:10 UTC35m
2026-07-21 AER170 ANC → HOM Jul 21, 22:50 UTCJul 21, 23:25 UTC35m
2026-07-21 AER971 ANC → CDB Jul 21, 20:30 UTCJul 21, 21:35 UTC1h 5m
2026-07-21 AER971 ANC → CDB Jul 21, 18:50 UTCJul 21, 20:10 UTC1h 20m
2026-07-21 AER180 ANC → HOM Jul 21, 01:00 UTCJul 21, 01:35 UTC35m
2026-07-21 AER180 ANC → HOM Jul 21, 00:00 UTCJul 21, 00:45 UTC45m
2026-07-20 AER180 ANC → HOM Jul 20, 22:45 UTCJul 20, 23:35 UTC50m
2026-07-20 AER180 ANC → HOM Jul 20, 21:50 UTCJul 20, 22:25 UTC35m
2026-07-20 AER970 - Jul 20, 02:05 UTCJul 20, 03:10 UTC1h 5m
2026-07-20 AER970 ANC → AKN Jul 20, 00:20 UTCJul 20, 01:40 UTC1h 20m
2026-07-19 AER921 - Jul 19, 18:45 UTCJul 19, 19:55 UTC1h 10m
2026-07-19 AER921 - Jul 19, 18:05 UTCJul 19, 18:15 UTC10m
2026-07-19 AER921 - Jul 19, 15:40 UTCJul 19, 17:15 UTC1h 35m
2026-07-19 AER180 ANC → HOM Jul 19, 01:35 UTCJul 19, 02:05 UTC30m
2026-07-19 AER180 ANC → HOM Jul 19, 00:25 UTCJul 19, 01:15 UTC50m
2026-07-18 AER180 ANC → HOM Jul 18, 23:00 UTCJul 19, 00:00 UTC1h 0m
2026-07-18 AER180 ANC → HOM Jul 18, 21:50 UTCJul 18, 22:25 UTC35m
2026-07-18 AER955 - Jul 18, 18:10 UTCJul 18, 19:15 UTC1h 5m
2026-07-18 AER955 - Jul 18, 16:05 UTCJul 18, 17:30 UTC1h 25m
2026-07-17 AER931 ANC → AKN Jul 17, 23:35 UTCJul 18, 00:39 UTC1h 5m
2026-07-17 AER931 ANC → AKN Jul 17, 21:20 UTCJul 17, 22:29 UTC1h 10m
2026-07-17 AER971 - Jul 17, 18:05 UTCJul 17, 19:05 UTC1h 0m
2026-07-17 AER971 ANC → AKN Jul 17, 16:15 UTCJul 17, 17:25 UTC1h 10m
2026-07-16 AER930 AKN → ANC Jul 16, 21:55 UTCJul 16, 22:59 UTC1h 5m
2026-07-16 AER930 ANC → AKN Jul 16, 19:35 UTCJul 16, 20:49 UTC1h 15m
2026-07-16 AER42 CDV → ANC Jul 16, 15:05 UTCJul 16, 16:00 UTC55m
2026-07-16 AER42 - Jul 16, 13:49 UTCJul 16, 14:50 UTC1h 0m

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 N247AX page for operator, model, and routing details .

Mode-S A24A16 frequently asked

What is Mode-S code A24A16?
A24A16 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N247AX.
Where is Mode-S A24A16 registered?
Mode-S code A24A16 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 A24A16 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A24A16, octal 50445026, decimal 10,635,798.
What flights does A24A16 operate?
Mode-S A24A16 has broadcast 20 distinct callsigns, including AER42, AER912, AER930, AER970, AER121.