Apparatus

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sensors Mode-S transponder

A2BD59

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N276FX · SIKORSKY S-76 Spirit · operated by FLEXJET VERTICAL LIFT LLC

Hex
A2BD59
Octal
50536531
Decimal
10,665,305
Country
US
Tail
N276FX
Type
S76
No current signal · last broadcast 2d ago
Flights observed
234
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A2BD59.

Country allocation

The ICAO 24-bit address A2BD59 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
FXC11 - 234 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 FXC11 HYA → BDR Jul 20, 21:55 UTCJul 20, 23:20 UTC1h 25m
2026-07-20 FXC11 - Jul 20, 19:50 UTCJul 20, 20:15 UTC25m
2026-07-20 FXC11 - Jul 20, 18:35 UTCJul 20, 19:20 UTC45m
2026-07-20 FXC11 - Jul 20, 15:50 UTCJul 20, 17:05 UTC1h 15m
2026-07-20 FXC11 - Jul 20, 13:30 UTCJul 20, 15:00 UTC1h 30m
2026-07-20 FXC11 - Jul 20, 12:10 UTCJul 20, 12:50 UTC40m
2026-07-20 FXC11 - Jul 20, 10:50 UTCJul 20, 12:05 UTC1h 15m
2026-07-19 FXC11 - Jul 19, 16:05 UTCJul 19, 16:20 UTC15m
2026-07-19 FXC11 - Jul 19, 15:50 UTCJul 19, 16:00 UTC10m
2026-07-19 FXC11 - Jul 19, 14:00 UTCJul 19, 15:25 UTC1h 25m
2026-07-19 FXC11 - Jul 19, 13:25 UTCJul 19, 13:35 UTC10m
2026-07-19 FXC11 - Jul 19, 12:05 UTCJul 19, 12:35 UTC30m
2026-07-17 FXC11 HPN → BDR Jul 17, 20:10 UTCJul 17, 21:10 UTC1h 0m
2026-07-17 FXC11 - Jul 17, 17:05 UTCJul 17, 17:20 UTC15m
2026-07-17 FXC11 - Jul 17, 14:00 UTCJul 17, 14:10 UTC10m
2026-07-17 FXC11 - Jul 17, 13:29 UTCJul 17, 13:50 UTC20m
2026-07-16 FXC11 JRA → BDR Jul 16, 15:55 UTCJul 16, 17:10 UTC1h 15m
2026-07-16 FXC11 TSS → JRB Jul 16, 14:05 UTCJul 16, 15:49 UTC1h 45m
2026-07-16 FXC11 - Jul 16, 13:20 UTCJul 16, 13:40 UTC20m
2026-07-15 FXC11 - Jul 15, 23:20 UTCJul 16, 00:40 UTC1h 20m
2026-07-15 FXC11 - Jul 15, 21:55 UTCJul 15, 22:30 UTC35m
2026-07-15 FXC11 - Jul 15, 20:30 UTCJul 15, 21:00 UTC30m
2026-07-15 FXC11 - Jul 15, 19:50 UTCJul 15, 20:05 UTC15m
2026-07-15 FXC11 - Jul 15, 15:35 UTCJul 15, 16:45 UTC1h 10m
2026-07-15 FXC11 - Jul 15, 15:20 UTCJul 15, 15:25 UTC5m
2026-07-15 FXC11 - Jul 15, 13:15 UTCJul 15, 13:30 UTC15m
2026-07-15 FXC11 - Jul 15, 11:45 UTCJul 15, 12:25 UTC40m
2026-07-09 FXC11 TSS → BDR Jul 9, 22:05 UTCJul 9, 23:30 UTC1h 25m
2026-07-09 FXC11 - Jul 9, 21:05 UTCJul 9, 21:20 UTC15m
2026-07-06 FXC11 - Jul 6, 13:25 UTCJul 6, 15:00 UTC1h 35m
2026-07-06 FXC11 - Jul 6, 11:35 UTCJul 6, 12:35 UTC1h 0m
2026-07-05 FXC11 - Jul 5, 19:50 UTCJul 5, 20:10 UTC20m
2026-07-05 FXC11 - Jul 5, 17:10 UTCJul 5, 18:35 UTC1h 25m
2026-07-05 FXC11 - Jul 5, 15:45 UTCJul 5, 17:05 UTC1h 20m
2026-07-02 FXC11 - Jul 2, 21:55 UTCJul 2, 22:50 UTC55m
2026-07-02 FXC11 - Jul 2, 20:05 UTCJul 2, 20:50 UTC45m
2026-07-01 FXC11 - Jul 1, 18:45 UTCJul 1, 19:05 UTC20m
2026-07-01 FXC11 - Jul 1, 16:55 UTCJul 1, 17:15 UTC20m
2026-06-29 FXC11 JRA → BDR Jun 29, 14:54 UTCJun 29, 15:19 UTC25m
2026-06-29 FXC11 HTO → JRB Jun 29, 14:09 UTCJun 29, 14:50 UTC40m
2026-06-29 FXC11 TSS → HTO Jun 29, 12:45 UTCJun 29, 13:30 UTC45m
2026-06-29 FXC11 - Jun 29, 12:14 UTCJun 29, 12:39 UTC25m
2026-06-29 FXC11 - Jun 29, 11:04 UTCJun 29, 11:25 UTC20m
2026-06-26 FXC11 - Jun 26, 19:55 UTCJun 26, 20:15 UTC20m
2026-06-24 FXC11 - Jun 24, 23:54 UTCJun 25, 01:44 UTC1h 50m
2026-06-24 FXC11 - Jun 24, 19:24 UTCJun 24, 20:20 UTC55m
2026-06-24 FXC11 JRA → FOK Jun 24, 17:20 UTCJun 24, 17:50 UTC30m
2026-06-24 FXC11 - Jun 24, 15:05 UTCJun 24, 15:59 UTC55m
2026-06-23 FXC11 - Jun 23, 21:59 UTCJun 23, 22:19 UTC20m
2026-06-21 FXC11 - Jun 21, 23:55 UTCJun 22, 01:49 UTC1h 55m

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 N276FX page for operator, model, and routing details .

Mode-S A2BD59 frequently asked

What is Mode-S code A2BD59?
A2BD59 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N276FX.
Where is Mode-S A2BD59 registered?
Mode-S code A2BD59 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 A2BD59 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2BD59, octal 50536531, decimal 10,665,305.
What flights does A2BD59 operate?
Mode-S A2BD59 has broadcast 1 distinct callsign, including FXC11.