Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A1F19B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N224TW · PILATUS PC-12 · operated by BEDFORD PARTNERS LLC

Hex
A1F19B
Octal
50370633
Decimal
10,613,147
Country
US
Tail
N224TW
Type
PC12
No current signal · last broadcast 1d ago
Flights observed
297
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A1F19B.

Country allocation

The ICAO 24-bit address A1F19B 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
GPD224 - 273 2026-07-17
GPD954 Tradewind Aviation 2 2026-04-18
GPD953 Tradewind Aviation 2 2026-04-18
GPD952 Tradewind Aviation 2 2026-04-18
GPD63 Tradewind Aviation 2 2026-04-21
GPD957 Tradewind Aviation 1 2026-04-18
GPD956 Tradewind Aviation 1 2026-04-18
GPD955 Tradewind Aviation 1 2026-04-18
GPD951 Tradewind Aviation 1 2026-04-18
GPD925 - 1 2026-04-16
GPD914 - 1 2026-04-16
GPD68B Tradewind Aviation 1 2026-04-22
GPD66B Tradewind Aviation 1 2026-04-21
GPD625 Tradewind Aviation 1 2026-04-15
GPD499 - 1 2026-04-16
GPD46 Tradewind Aviation 1 2026-04-22
GPD416 Tradewind Aviation 1 2026-04-20
GPD171 Tradewind Aviation 1 2026-04-20
GPD106 Tradewind Aviation 1 2026-04-15
GPD105 Tradewind Aviation 1 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 GPD224 - Jul 17, 23:14 UTCJul 18, 01:05 UTC1h 50m
2026-07-17 GPD224 - Jul 17, 21:34 UTCJul 17, 22:20 UTC45m
2026-07-17 GPD224 - Jul 17, 20:10 UTCJul 17, 20:50 UTC40m
2026-07-17 GPD224 - Jul 17, 15:25 UTCJul 17, 16:10 UTC45m
2026-07-16 GPD224 - Jul 16, 22:45 UTCJul 16, 23:40 UTC55m
2026-07-16 GPD224 - Jul 16, 19:50 UTCJul 16, 21:00 UTC1h 10m
2026-07-16 GPD224 - Jul 16, 18:10 UTCJul 16, 18:59 UTC50m
2026-07-16 GPD224 - Jul 16, 16:40 UTCJul 16, 16:55 UTC15m
2026-07-15 GPD224 - Jul 15, 17:05 UTCJul 15, 18:05 UTC1h 0m
2026-07-15 GPD224 - Jul 15, 13:05 UTCJul 15, 14:40 UTC1h 35m
2026-07-13 GPD224 - Jul 13, 10:40 UTCJul 13, 12:10 UTC1h 30m
2026-07-13 GPD224 - Jul 13, 09:15 UTCJul 13, 09:50 UTC35m
2026-07-12 GPD224 - Jul 12, 23:35 UTCJul 13, 00:55 UTC1h 20m
2026-07-12 GPD224 - Jul 12, 22:00 UTCJul 12, 22:45 UTC45m
2026-07-12 GPD224 - Jul 12, 20:35 UTCJul 12, 21:25 UTC50m
2026-07-12 GPD224 - Jul 12, 18:35 UTCJul 12, 19:20 UTC45m
2026-07-12 GPD224 - Jul 12, 16:10 UTCJul 12, 16:55 UTC45m
2026-07-12 GPD224 - Jul 12, 14:25 UTCJul 12, 15:05 UTC40m
2026-07-11 GPD224 - Jul 11, 22:40 UTCJul 11, 23:25 UTC45m
2026-07-11 GPD224 - Jul 11, 21:20 UTCJul 11, 22:01 UTC40m
2026-07-11 GPD224 - Jul 11, 18:35 UTCJul 11, 19:20 UTC45m
2026-07-11 GPD224 - Jul 11, 17:20 UTCJul 11, 17:55 UTC35m
2026-07-11 GPD224 - Jul 11, 15:30 UTCJul 11, 16:10 UTC40m
2026-07-11 GPD224 - Jul 11, 13:55 UTCJul 11, 14:35 UTC40m
2026-07-10 GPD224 - Jul 10, 20:20 UTCJul 10, 21:10 UTC50m
2026-07-10 GPD224 - Jul 10, 18:50 UTCJul 10, 19:35 UTC45m
2026-07-10 GPD224 - Jul 10, 17:20 UTCJul 10, 18:15 UTC55m
2026-07-10 GPD224 - Jul 10, 15:20 UTCJul 10, 16:05 UTC45m
2026-07-10 GPD224 - Jul 10, 00:05 UTCJul 10, 01:15 UTC1h 10m
2026-07-09 GPD224 - Jul 9, 22:05 UTCJul 9, 22:45 UTC40m
2026-07-09 GPD224 - Jul 9, 20:20 UTCJul 9, 21:05 UTC45m
2026-07-09 GPD224 - Jul 9, 19:05 UTCJul 9, 19:45 UTC40m
2026-07-09 GPD224 - Jul 9, 17:15 UTCJul 9, 18:00 UTC45m
2026-07-09 GPD224 - Jul 9, 15:55 UTCJul 9, 16:30 UTC35m
2026-07-08 GPD224 MVY → HPN Jul 8, 21:35 UTCJul 8, 23:00 UTC1h 25m
2026-07-08 GPD224 - Jul 8, 20:20 UTCJul 8, 21:00 UTC40m
2026-07-08 GPD224 - Jul 8, 18:00 UTCJul 8, 18:45 UTC45m
2026-07-08 GPD224 - Jul 8, 16:10 UTCJul 8, 16:45 UTC35m
2026-07-07 GPD224 - Jul 7, 22:55 UTCJul 7, 23:40 UTC45m
2026-07-07 GPD224 - Jul 7, 21:10 UTCJul 7, 21:55 UTC45m
2026-07-07 GPD224 - Jul 7, 19:45 UTCJul 7, 20:35 UTC50m
2026-07-07 GPD224 - Jul 7, 17:55 UTCJul 7, 18:40 UTC45m
2026-07-07 GPD224 - Jul 7, 16:15 UTCJul 7, 17:00 UTC45m
2026-07-07 GPD224 - Jul 7, 14:45 UTCJul 7, 15:30 UTC45m
2026-07-06 GPD224 - Jul 6, 16:50 UTCJul 6, 17:35 UTC45m
2026-07-06 GPD224 - Jul 6, 15:10 UTCJul 6, 15:50 UTC40m
2026-07-06 GPD224 - Jul 6, 13:50 UTCJul 6, 14:35 UTC45m
2026-07-06 GPD224 HPN → MVY Jul 6, 12:35 UTCJul 6, 13:15 UTC40m
2026-07-06 GPD224 - Jul 6, 10:45 UTCJul 6, 11:35 UTC50m
2026-07-06 GPD224 - Jul 6, 09:25 UTCJul 6, 10:05 UTC40m

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 N224TW page for operator, model, and routing details .

Mode-S A1F19B frequently asked

What is Mode-S code A1F19B?
A1F19B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N224TW.
Where is Mode-S A1F19B registered?
Mode-S code A1F19B 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 A1F19B 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 A1F19B, octal 50370633, decimal 10,613,147.
What flights does A1F19B operate?
Mode-S A1F19B has broadcast 20 distinct callsigns, including GPD224, GPD954, GPD953, GPD952, GPD63.