Apparatus

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sensors Mode-S transponder

A54294

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N438TW · PILATUS PC-12 · operated by TW LEASING LLC

Hex
A54294
Octal
51241224
Decimal
10,830,484
Country
US
Tail
N438TW
Type
PC12
No current signal · last broadcast 3h ago
Flights observed
163
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A54294.

Country allocation

The ICAO 24-bit address A54294 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
GPD438 Tradewind Aviation 163 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 GPD438 FOK → OXC May 29, 20:50 UTCMay 29, 22:15 UTC1h 25m
2026-05-29 GPD438 FOK → OXC May 29, 19:10 UTCMay 29, 19:50 UTC40m
2026-05-29 GPD438 FOK → OXC May 29, 18:15 UTCMay 29, 18:35 UTC20m
2026-05-29 GPD438 FOK → OXC May 29, 14:05 UTCMay 29, 14:35 UTC30m
2026-05-28 GPD438 FOK → OXC May 28, 22:35 UTCMay 28, 22:55 UTC20m
2026-05-28 GPD438 FOK → OXC May 28, 20:25 UTCMay 28, 21:00 UTC35m
2026-05-28 GPD438 FOK → OXC May 28, 14:30 UTCMay 28, 14:55 UTC25m
2026-05-28 GPD438 FOK → OXC May 28, 12:10 UTCMay 28, 12:50 UTC40m
2026-05-27 GPD438 FOK → OXC May 27, 13:40 UTCMay 27, 14:25 UTC45m
2026-05-27 GPD438 FOK → OXC May 27, 12:25 UTCMay 27, 13:15 UTC50m
2026-05-26 GPD438 FOK → OXC May 26, 15:35 UTCMay 26, 16:10 UTC35m
2026-05-26 GPD438 FOK → OXC May 26, 13:10 UTCMay 26, 13:45 UTC35m
2026-05-26 GPD438 FOK → OXC May 26, 11:05 UTCMay 26, 12:05 UTC1h 0m
2026-05-25 GPD438 FOK → OXC May 25, 20:34 UTCMay 25, 21:19 UTC45m
2026-05-25 GPD438 FOK → OXC May 25, 19:35 UTCMay 25, 19:50 UTC15m
2026-05-25 GPD438 FOK → OXC May 25, 16:10 UTCMay 25, 16:30 UTC20m
2026-05-25 GPD438 FOK → OXC May 25, 13:30 UTCMay 25, 14:50 UTC1h 20m
2026-05-25 GPD438 FOK → OXC May 25, 11:20 UTCMay 25, 11:55 UTC35m
2026-05-24 GPD438 FOK → OXC May 24, 20:45 UTCMay 24, 21:05 UTC20m
2026-05-24 GPD438 FOK → OXC May 24, 18:30 UTCMay 24, 18:50 UTC20m
2026-05-24 GPD438 FOK → OXC May 24, 17:30 UTCMay 24, 17:50 UTC20m
2026-05-24 GPD438 FOK → OXC May 24, 15:45 UTCMay 24, 16:05 UTC20m
2026-05-24 GPD438 FOK → OXC May 24, 14:35 UTCMay 24, 15:00 UTC25m
2026-05-24 GPD438 FOK → OXC May 24, 12:55 UTCMay 24, 13:15 UTC20m
2026-05-23 GPD438 FOK → OXC May 23, 21:55 UTCMay 23, 23:15 UTC1h 20m
2026-05-23 GPD438 FOK → OXC May 23, 20:05 UTCMay 23, 20:15 UTC10m
2026-05-22 GPD438 FOK → OXC May 22, 22:10 UTCMay 22, 22:30 UTC20m
2026-05-22 GPD438 FOK → OXC May 22, 20:25 UTCMay 22, 21:00 UTC35m
2026-05-22 GPD438 FOK → OXC May 22, 18:55 UTCMay 22, 19:15 UTC20m
2026-05-22 GPD438 FOK → OXC May 22, 17:10 UTCMay 22, 17:35 UTC25m
2026-05-22 GPD438 FOK → OXC May 22, 15:45 UTCMay 22, 15:55 UTC10m
2026-05-22 GPD438 FOK → OXC May 22, 13:50 UTCMay 22, 14:10 UTC20m
2026-05-21 GPD438 FOK → OXC May 21, 22:25 UTCMay 21, 22:50 UTC25m
2026-05-21 GPD438 FOK → OXC May 21, 20:45 UTCMay 21, 21:35 UTC50m
2026-05-21 GPD438 FOK → OXC May 21, 18:25 UTCMay 21, 18:40 UTC15m
2026-05-21 GPD438 FOK → OXC May 21, 17:05 UTCMay 21, 17:50 UTC45m
2026-05-21 GPD438 FOK → OXC May 21, 15:20 UTCMay 21, 15:50 UTC30m
2026-05-20 GPD438 FOK → OXC May 20, 19:35 UTCMay 20, 19:45 UTC10m
2026-05-20 GPD438 FOK → OXC May 20, 17:50 UTCMay 20, 18:05 UTC15m
2026-05-20 GPD438 FOK → OXC May 20, 16:10 UTCMay 20, 16:30 UTC20m
2026-05-20 GPD438 FOK → OXC May 20, 14:50 UTCMay 20, 15:10 UTC20m
2026-05-20 GPD438 FOK → OXC May 20, 13:10 UTCMay 20, 13:35 UTC25m
2026-05-19 GPD438 FOK → OXC May 19, 19:55 UTCMay 19, 21:10 UTC1h 15m
2026-05-19 GPD438 FOK → OXC May 19, 17:25 UTCMay 19, 18:35 UTC1h 10m
2026-05-19 GPD438 FOK → OXC May 19, 15:25 UTCMay 19, 16:00 UTC35m
2026-05-18 GPD438 FOK → OXC May 18, 14:05 UTCMay 18, 14:45 UTC40m
2026-05-18 GPD438 FOK → OXC May 18, 11:25 UTCMay 18, 11:50 UTC25m
2026-05-17 GPD438 FOK → OXC May 17, 21:10 UTCMay 17, 21:30 UTC20m
2026-05-17 GPD438 FOK → OXC May 17, 18:55 UTCMay 17, 19:15 UTC20m
2026-05-17 GPD438 FOK → OXC May 17, 17:55 UTCMay 17, 18:10 UTC15m

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 N438TW page for operator, model, and routing details .

Mode-S A54294 frequently asked

What is Mode-S code A54294?
A54294 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N438TW.
Where is Mode-S A54294 registered?
Mode-S code A54294 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 A54294 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A54294, octal 51241224, decimal 10,830,484.
What flights does A54294 operate?
Mode-S A54294 has broadcast 1 distinct callsign, including GPD438.