Apparatus

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sensors Mode-S transponder

A19865

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2012N · BEECH 23 Sundowner · operated by AIRHAWKS FLYING CLUP

Hex
A19865
Octal
50314145
Decimal
10,590,309
Country
US
Tail
N2012N
Type
BE23
No current signal · last broadcast 57m ago
Flights observed
75
Distinct callsigns
1
Country
US
Last broadcast
57m ago

Last known position

Most recent position reported by Mode-S A19865.

Country allocation

The ICAO 24-bit address A19865 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
N2012N - 75 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N2012N ESD → ESD May 29, 23:25 UTCMay 30, 00:25 UTC1h 0m
2026-05-29 N2012N - May 29, 01:35 UTCMay 29, 02:55 UTC1h 20m
2026-05-27 N2012N - May 27, 22:35 UTCMay 27, 23:40 UTC1h 5m
2026-05-27 N2012N WDN → ESD May 27, 17:30 UTCMay 27, 18:20 UTC50m
2026-05-24 N2012N RSJ → ESD May 24, 19:00 UTCMay 24, 19:55 UTC55m
2026-05-24 N2012N ESD → ESD May 24, 17:00 UTCMay 24, 17:25 UTC25m
2026-05-24 N2012N RSJ → ESD May 24, 16:05 UTCMay 24, 16:30 UTC25m
2026-05-23 N2012N - May 23, 18:35 UTCMay 23, 18:55 UTC20m
2026-05-23 N2012N - May 23, 04:00 UTCMay 23, 04:10 UTC10m
2026-05-23 N2012N - May 23, 02:45 UTCMay 23, 03:15 UTC30m
2026-05-22 N2012N - May 22, 17:40 UTCMay 22, 18:55 UTC1h 15m
2026-05-21 N2012N - May 21, 22:20 UTCMay 21, 22:30 UTC10m
2026-05-21 N2012N - May 21, 21:15 UTCMay 21, 21:25 UTC10m
2026-05-21 N2012N - May 21, 20:25 UTCMay 21, 20:35 UTC10m
2026-05-21 N2012N - May 21, 18:30 UTCMay 21, 18:40 UTC10m
2026-05-20 N2012N MVW → ESD May 20, 23:40 UTCMay 21, 00:25 UTC45m
2026-05-20 N2012N ESD → MVW May 20, 22:20 UTCMay 20, 23:10 UTC50m
2026-05-20 N2012N - May 20, 20:55 UTCMay 20, 21:10 UTC15m
2026-05-20 N2012N - May 20, 20:10 UTCMay 20, 20:25 UTC15m
2026-05-20 N2012N - May 20, 02:15 UTCMay 20, 03:00 UTC45m
2026-05-20 N2012N - May 20, 01:35 UTCMay 20, 01:45 UTC10m
2026-05-19 N2012N ESD → ESD May 19, 22:55 UTCMay 20, 00:25 UTC1h 30m
2026-05-19 N2012N - May 19, 17:45 UTCMay 19, 18:20 UTC35m
2026-05-18 N2012N - May 18, 22:00 UTCMay 18, 22:55 UTC55m
2026-05-18 N2012N - May 18, 19:40 UTCMay 18, 20:50 UTC1h 10m
2026-05-18 N2012N ESD → TIW May 18, 14:30 UTCMay 18, 15:25 UTC55m
2026-05-17 N2012N ESD → ESD May 17, 18:50 UTCMay 17, 21:01 UTC2h 10m
2026-05-17 N2012N ESD → ESD May 17, 16:55 UTCMay 17, 17:10 UTC15m
2026-05-17 N2012N ESD → ESD May 17, 00:05 UTCMay 17, 02:35 UTC2h 30m
2026-05-16 N2012N BLI → ESD May 16, 20:40 UTCMay 16, 21:20 UTC40m
2026-05-16 N2012N ESD → BLI May 16, 19:45 UTCMay 16, 20:05 UTC20m
2026-05-13 N2012N - May 13, 18:25 UTCMay 13, 19:00 UTC35m
2026-05-11 N2012N - May 11, 18:50 UTCMay 11, 19:10 UTC20m
2026-05-11 N2012N ESD → MVW May 11, 17:15 UTCMay 11, 17:35 UTC20m
2026-05-11 N2012N BFI → ESD May 11, 04:45 UTCMay 11, 06:05 UTC1h 20m
2026-05-11 N2012N ESD → BFI May 11, 03:10 UTCMay 11, 03:55 UTC45m
2026-05-10 N2012N - May 10, 17:30 UTCMay 10, 19:00 UTC1h 30m
2026-05-10 N2012N - May 10, 00:55 UTCMay 10, 01:09 UTC15m
2026-05-09 N2012N - May 9, 23:25 UTCMay 10, 00:15 UTC50m
2026-05-09 N2012N - May 9, 17:05 UTCMay 9, 18:40 UTC1h 35m
2026-05-07 N2012N - May 7, 23:24 UTCMay 7, 23:55 UTC30m
2026-05-07 N2012N - May 7, 21:55 UTCMay 7, 22:45 UTC50m
2026-05-06 N2012N BLI → ESD May 6, 23:45 UTCMay 7, 00:20 UTC35m
2026-05-06 N2012N ESD → BLI May 6, 22:55 UTCMay 6, 23:10 UTC15m
2026-05-03 N2012N ESD → ESD May 3, 19:55 UTCMay 3, 20:49 UTC55m
2026-05-03 N2012N - May 3, 18:50 UTCMay 3, 19:05 UTC15m
2026-05-03 N2012N ESD → MVW May 3, 17:05 UTCMay 3, 17:50 UTC45m
2026-05-02 N2012N ESD → ESD May 2, 01:55 UTCMay 2, 03:10 UTC1h 16m
2026-05-01 N2012N - May 1, 20:05 UTCMay 1, 21:10 UTC1h 5m
2026-04-30 N2012N ESD → ESD Apr 30, 23:10 UTCMay 1, 00:30 UTC1h 20m

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 N2012N page for operator, model, and routing details .

Mode-S A19865 frequently asked

What is Mode-S code A19865?
A19865 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2012N.
Where is Mode-S A19865 registered?
Mode-S code A19865 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 A19865 broadcasting right now?
No active broadcast right now. Last signal was 57m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A19865, octal 50314145, decimal 10,590,309.
What flights does A19865 operate?
Mode-S A19865 has broadcast 1 distinct callsign, including N2012N.