sensors Mode-S transponder

A19595

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N20089 · CESSNA 172 Skyhawk · operated by EAGLE AIR INC

Hex
A19595
Octal
50312625
Decimal
10,589,589
Country
US
Tail
N20089
Type
C172
No current signal · last broadcast 2d ago
Flights observed
36
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A19595.

Country allocation

The ICAO 24-bit address A19595 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
N20089 - 36 2026-07-11

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-07-11 N20089 - Jul 11, 15:55 UTCJul 11, 16:05 UTC10m
2026-07-11 N20089 - Jul 11, 14:55 UTCJul 11, 15:05 UTC10m
2026-07-10 N20089 - Jul 10, 14:40 UTCJul 10, 15:20 UTC40m
2026-07-08 N20089 - Jul 8, 17:35 UTCJul 8, 18:00 UTC25m
2026-07-08 N20089 - Jul 8, 16:50 UTCJul 8, 17:00 UTC10m
2026-07-07 N20089 - Jul 7, 22:00 UTCJul 7, 23:50 UTC1h 50m
2026-07-07 N20089 - Jul 7, 20:25 UTCJul 7, 20:50 UTC25m
2026-07-07 N20089 - Jul 7, 14:15 UTCJul 7, 15:35 UTC1h 20m
2026-07-06 N20089 AZO → AZO Jul 6, 14:35 UTCJul 6, 16:00 UTC1h 25m
2026-06-28 N20089 - Jun 28, 14:39 UTCJun 28, 15:34 UTC55m
2026-06-27 N20089 - Jun 27, 15:19 UTCJun 27, 16:10 UTC50m
2026-06-23 N20089 - Jun 23, 13:59 UTCJun 23, 15:34 UTC1h 35m
2026-06-21 N20089 - Jun 21, 17:50 UTCJun 21, 18:35 UTC45m
2026-06-21 N20089 AZO → MKG Jun 21, 14:54 UTCJun 21, 15:44 UTC50m
2026-06-20 N20089 - Jun 20, 13:14 UTCJun 20, 14:39 UTC1h 25m
2026-06-15 N20089 AZO → AZO Jun 15, 15:19 UTCJun 15, 15:59 UTC40m
2026-06-13 N20089 - Jun 13, 17:45 UTCJun 13, 18:10 UTC25m
2026-06-13 N20089 - Jun 13, 14:45 UTCJun 13, 15:05 UTC20m
2026-06-07 N20089 - Jun 7, 16:35 UTCJun 7, 17:50 UTC1h 15m
2026-06-07 N20089 - Jun 7, 14:05 UTCJun 7, 15:50 UTC1h 45m
2026-06-04 N20089 - Jun 4, 18:05 UTCJun 4, 18:55 UTC50m
2026-06-01 N20089 AZO → AZO Jun 1, 15:15 UTCJun 1, 16:50 UTC1h 35m
2026-05-27 N20089 - May 27, 22:10 UTCMay 27, 22:55 UTC45m
2026-05-27 N20089 - May 27, 14:10 UTCMay 27, 14:50 UTC40m
2026-05-25 N20089 - May 25, 19:35 UTCMay 25, 21:04 UTC1h 30m
2026-05-21 N20089 - May 21, 17:55 UTCMay 21, 19:25 UTC1h 30m
2026-05-17 N20089 - May 17, 17:40 UTCMay 17, 18:25 UTC45m
2026-05-17 N20089 - May 17, 14:50 UTCMay 17, 15:31 UTC40m
2026-05-16 N20089 - May 16, 16:00 UTCMay 16, 17:01 UTC1h 0m
2026-04-25 N20089 - Apr 25, 21:50 UTCApr 25, 23:05 UTC1h 15m
2026-04-25 N20089 - Apr 25, 20:50 UTCApr 25, 21:05 UTC15m
2026-04-23 N20089 - Apr 23, 18:25 UTCApr 23, 19:45 UTC1h 20m
2026-04-23 N20089 - Apr 23, 15:05 UTCApr 23, 16:15 UTC1h 10m
2026-04-22 N20089 - Apr 22, 14:45 UTCApr 22, 15:40 UTC55m
2026-04-20 N20089 - Apr 20, 17:15 UTCApr 20, 18:00 UTC45m
2026-04-20 N20089 - Apr 20, 14:35 UTCApr 20, 15:50 UTC1h 15m

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 N20089 page for operator, model, and routing details .

Mode-S A19595 frequently asked

What is Mode-S code A19595?
A19595 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N20089.
Where is Mode-S A19595 registered?
Mode-S code A19595 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 A19595 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 A19595, octal 50312625, decimal 10,589,589.
What flights does A19595 operate?
Mode-S A19595 has broadcast 1 distinct callsign, including N20089.