Apparatus

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sensors Mode-S transponder

A53B26

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N436TW · PILATUS PC-12 · operated by TW LEASING LLC

Hex
A53B26
Octal
51235446
Decimal
10,828,582
Country
US
Tail
N436TW
Type
PC12
No current signal · last broadcast 4h ago
Flights observed
148
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A53B26.

Country allocation

The ICAO 24-bit address A53B26 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
GPD436 Tradewind Aviation 148 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 GPD436 BED → MVL May 29, 20:35 UTCMay 29, 21:05 UTC30m
2026-05-29 GPD436 BED → MVL May 29, 19:05 UTCMay 29, 19:50 UTC45m
2026-05-29 GPD436 BED → MVL May 29, 17:00 UTCMay 29, 18:00 UTC1h 0m
2026-05-29 GPD436 BED → MVL May 29, 15:25 UTCMay 29, 15:50 UTC25m
2026-05-28 GPD436 BED → MVL May 28, 17:40 UTCMay 28, 18:05 UTC25m
2026-05-28 GPD436 BED → MVL May 28, 01:45 UTCMay 28, 01:55 UTC10m
2026-05-28 GPD436 BED → MVL May 28, 00:15 UTCMay 28, 01:05 UTC50m
2026-05-26 GPD436 BED → MVL May 26, 19:45 UTCMay 26, 20:45 UTC1h 0m
2026-05-26 GPD436 BED → MVL May 26, 18:10 UTCMay 26, 18:50 UTC40m
2026-05-26 GPD436 BED → MVL May 26, 16:40 UTCMay 26, 17:30 UTC50m
2026-05-26 GPD436 BED → MVL May 26, 14:50 UTCMay 26, 15:45 UTC55m
2026-05-26 GPD436 BED → MVL May 26, 11:54 UTCMay 26, 12:40 UTC45m
2026-05-26 GPD436 BED → MVL May 26, 00:49 UTCMay 26, 02:04 UTC1h 15m
2026-05-25 GPD436 BED → MVL May 25, 21:45 UTCMay 25, 22:55 UTC1h 10m
2026-05-25 GPD436 BED → MVL May 25, 19:59 UTCMay 25, 20:24 UTC25m
2026-05-25 GPD436 BED → MVL May 25, 18:50 UTCMay 25, 19:00 UTC10m
2026-05-25 GPD436 BED → MVL May 25, 16:05 UTCMay 25, 16:30 UTC25m
2026-05-25 GPD436 BED → MVL May 25, 14:30 UTCMay 25, 14:50 UTC20m
2026-05-24 GPD436 BED → MVL May 24, 17:30 UTCMay 24, 18:05 UTC35m
2026-05-24 GPD436 BED → MVL May 24, 14:25 UTCMay 24, 15:25 UTC1h 0m
2026-05-24 GPD436 BED → MVL May 24, 13:20 UTCMay 24, 13:55 UTC35m
2026-05-24 GPD436 BED → MVL May 24, 11:45 UTCMay 24, 12:05 UTC20m
2026-05-22 GPD436 BED → MVL May 22, 21:35 UTCMay 22, 21:55 UTC20m
2026-05-22 GPD436 BED → MVL May 22, 20:00 UTCMay 22, 20:20 UTC20m
2026-05-22 GPD436 BED → MVL May 22, 18:50 UTCMay 22, 19:15 UTC25m
2026-05-22 GPD436 BED → MVL May 22, 17:10 UTCMay 22, 17:35 UTC25m
2026-05-22 GPD436 BED → MVL May 22, 14:50 UTCMay 22, 15:05 UTC15m
2026-05-21 GPD436 BED → MVL May 21, 21:15 UTCMay 21, 21:45 UTC30m
2026-05-21 GPD436 BED → MVL May 21, 19:45 UTCMay 21, 20:05 UTC20m
2026-05-21 GPD436 BED → MVL May 21, 17:50 UTCMay 21, 18:15 UTC25m
2026-05-21 GPD436 BED → MVL May 21, 16:50 UTCMay 21, 17:05 UTC15m
2026-05-21 GPD436 BED → MVL May 21, 14:25 UTCMay 21, 14:45 UTC20m
2026-05-21 GPD436 BED → MVL May 21, 11:55 UTCMay 21, 12:10 UTC15m
2026-05-20 GPD436 BED → MVL May 20, 20:50 UTCMay 20, 21:10 UTC20m
2026-05-20 GPD436 BED → MVL May 20, 18:30 UTCMay 20, 19:10 UTC40m
2026-05-20 GPD436 BED → MVL May 20, 13:30 UTCMay 20, 14:50 UTC1h 20m
2026-05-20 GPD436 BED → MVL May 20, 11:45 UTCMay 20, 12:10 UTC25m
2026-05-19 GPD436 BED → MVL May 19, 16:50 UTCMay 19, 17:10 UTC20m
2026-05-19 GPD436 BED → MVL May 19, 14:00 UTCMay 19, 14:30 UTC30m
2026-05-18 GPD436 BED → MVL May 18, 15:10 UTCMay 18, 15:50 UTC40m
2026-05-18 GPD436 BED → MVL May 18, 13:50 UTCMay 18, 14:45 UTC55m
2026-05-18 GPD436 BED → MVL May 18, 11:55 UTCMay 18, 12:15 UTC20m
2026-05-17 GPD436 BED → MVL May 17, 20:45 UTCMay 17, 22:01 UTC1h 15m
2026-05-17 GPD436 BED → MVL May 17, 16:55 UTCMay 17, 17:25 UTC30m
2026-05-17 GPD436 BED → MVL May 17, 15:25 UTCMay 17, 15:45 UTC20m
2026-05-15 GPD436 BED → MVL May 15, 17:30 UTCMay 15, 18:45 UTC1h 15m
2026-05-14 GPD436 BED → MVL May 14, 23:20 UTCMay 15, 00:10 UTC50m
2026-05-14 GPD436 BED → MVL May 14, 21:30 UTCMay 14, 21:45 UTC15m
2026-05-14 GPD436 BED → MVL May 14, 18:40 UTCMay 14, 19:35 UTC55m
2026-05-14 GPD436 BED → MVL May 14, 16:20 UTCMay 14, 16:50 UTC30m

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 N436TW page for operator, model, and routing details .

Mode-S A53B26 frequently asked

What is Mode-S code A53B26?
A53B26 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N436TW.
Where is Mode-S A53B26 registered?
Mode-S code A53B26 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 A53B26 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A53B26, octal 51235446, decimal 10,828,582.
What flights does A53B26 operate?
Mode-S A53B26 has broadcast 1 distinct callsign, including GPD436.