Apparatus

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sensors Mode-S transponder

A5376F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N435TW · PILATUS PC-12 · operated by TW LEASING LLC

Hex
A5376F
Octal
51233557
Decimal
10,827,631
Country
US
Tail
N435TW
Type
PC12
No current signal · last broadcast 3h ago
Flights observed
155
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A5376F.

Country allocation

The ICAO 24-bit address A5376F 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
GPD435 Tradewind Aviation 155 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 GPD435 BVY → BED May 29, 21:55 UTCMay 29, 22:25 UTC30m
2026-05-29 GPD435 BVY → BED May 29, 19:45 UTCMay 29, 20:20 UTC35m
2026-05-29 GPD435 BVY → BED May 29, 18:35 UTCMay 29, 18:55 UTC20m
2026-05-29 GPD435 BVY → BED May 29, 16:40 UTCMay 29, 17:05 UTC25m
2026-05-29 GPD435 BVY → BED May 29, 15:05 UTCMay 29, 15:25 UTC20m
2026-05-29 GPD435 BVY → BED May 29, 13:05 UTCMay 29, 13:25 UTC20m
2026-05-26 GPD435 BVY → BED May 26, 21:44 UTCMay 26, 21:49 UTC5m
2026-05-26 GPD435 BVY → BED May 26, 20:40 UTCMay 26, 21:00 UTC20m
2026-05-26 GPD435 BVY → BED May 26, 17:59 UTCMay 26, 18:30 UTC30m
2026-05-25 GPD435 BVY → BED May 25, 22:49 UTCMay 25, 23:19 UTC30m
2026-05-25 GPD435 BVY → BED May 25, 20:45 UTCMay 25, 21:24 UTC40m
2026-05-25 GPD435 BVY → BED May 25, 19:35 UTCMay 25, 19:54 UTC20m
2026-05-25 GPD435 BVY → BED May 25, 16:35 UTCMay 25, 18:00 UTC1h 25m
2026-05-25 GPD435 BVY → BED May 25, 14:50 UTCMay 25, 15:10 UTC20m
2026-05-25 GPD435 BVY → BED May 25, 12:45 UTCMay 25, 13:10 UTC25m
2026-05-24 GPD435 BVY → BED May 24, 21:00 UTCMay 24, 21:30 UTC30m
2026-05-24 GPD435 BVY → BED May 24, 19:35 UTCMay 24, 20:20 UTC45m
2026-05-24 GPD435 BVY → BED May 24, 17:00 UTCMay 24, 17:35 UTC35m
2026-05-24 GPD435 BVY → BED May 24, 13:50 UTCMay 24, 14:10 UTC20m
2026-05-23 GPD435 BVY → BED May 23, 21:55 UTCMay 23, 22:20 UTC25m
2026-05-23 GPD435 BVY → BED May 23, 19:00 UTCMay 23, 20:45 UTC1h 45m
2026-05-23 GPD435 BVY → BED May 23, 17:10 UTCMay 23, 17:40 UTC30m
2026-05-22 GPD435 BVY → BED May 22, 19:20 UTCMay 22, 19:45 UTC25m
2026-05-22 GPD435 BVY → BED May 22, 17:35 UTCMay 22, 17:55 UTC20m
2026-05-22 GPD435 BVY → BED May 22, 16:25 UTCMay 22, 16:50 UTC25m
2026-05-22 GPD435 BVY → BED May 22, 15:00 UTCMay 22, 15:25 UTC25m
2026-05-22 GPD435 BVY → BED May 22, 12:50 UTCMay 22, 13:20 UTC30m
2026-05-21 GPD435 BVY → BED May 21, 18:40 UTCMay 21, 20:15 UTC1h 35m
2026-05-21 GPD435 BVY → BED May 21, 17:15 UTCMay 21, 18:05 UTC50m
2026-05-21 GPD435 BVY → BED May 21, 15:00 UTCMay 21, 16:01 UTC1h 0m
2026-05-21 GPD435 BVY → BED May 21, 13:45 UTCMay 21, 14:20 UTC35m
2026-05-20 GPD435 BVY → BED May 20, 21:45 UTCMay 20, 22:55 UTC1h 10m
2026-05-20 GPD435 BVY → BED May 20, 20:00 UTCMay 20, 20:35 UTC35m
2026-05-20 GPD435 BVY → BED May 20, 18:45 UTCMay 20, 19:00 UTC15m
2026-05-20 GPD435 BVY → BED May 20, 15:30 UTCMay 20, 15:45 UTC15m
2026-05-20 GPD435 BVY → BED May 20, 13:30 UTCMay 20, 14:00 UTC30m
2026-05-19 GPD435 BVY → BED May 19, 18:10 UTCMay 19, 18:25 UTC15m
2026-05-19 GPD435 BVY → BED May 19, 16:55 UTCMay 19, 17:45 UTC50m
2026-05-19 GPD435 BVY → BED May 19, 14:10 UTCMay 19, 15:45 UTC1h 35m
2026-05-19 GPD435 BVY → BED May 19, 10:50 UTCMay 19, 11:30 UTC40m
2026-05-18 GPD435 BVY → BED May 18, 15:45 UTCMay 18, 16:30 UTC45m
2026-05-18 GPD435 BVY → BED May 18, 13:40 UTCMay 18, 14:55 UTC1h 15m
2026-05-17 GPD435 BVY → BED May 17, 21:15 UTCMay 17, 21:40 UTC25m
2026-05-17 GPD435 BVY → BED May 17, 20:20 UTCMay 17, 20:40 UTC20m
2026-05-17 GPD435 BVY → BED May 17, 17:30 UTCMay 17, 18:15 UTC45m
2026-05-17 GPD435 BVY → BED May 17, 16:05 UTCMay 17, 16:40 UTC35m
2026-05-16 GPD435 BVY → BED May 16, 19:50 UTCMay 16, 20:15 UTC25m
2026-05-16 GPD435 BVY → BED May 16, 18:25 UTCMay 16, 19:15 UTC50m
2026-05-16 GPD435 BVY → BED May 16, 14:25 UTCMay 16, 15:20 UTC55m
2026-05-16 GPD435 BVY → BED May 16, 12:05 UTCMay 16, 12:21 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 N435TW page for operator, model, and routing details .

Mode-S A5376F frequently asked

What is Mode-S code A5376F?
A5376F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N435TW.
Where is Mode-S A5376F registered?
Mode-S code A5376F 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 A5376F 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 A5376F, octal 51233557, decimal 10,827,631.
What flights does A5376F operate?
Mode-S A5376F has broadcast 1 distinct callsign, including GPD435.