Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A73D3F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N566AL · operated by KGJC AERO LLC

Hex
A73D3F
Octal
51636477
Decimal
10,960,191
Country
US
Tail
N566AL
Type
BE9L
No current signal · last broadcast Jul 25, 03:05 UTC
Flights observed
73
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 03:05 UTC

Last known position

Most recent position reported by Mode-S A73D3F.

Country allocation

The ICAO 24-bit address A73D3F 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
N566AL - 73 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N566AL - Jul 25, 01:30 UTCJul 25, 03:05 UTC1h 35m
2026-07-24 N566AL - Jul 24, 21:50 UTCJul 25, 00:45 UTC2h 55m
2026-07-21 N566AL - Jul 21, 22:45 UTCJul 21, 23:20 UTC35m
2026-07-21 N566AL - Jul 21, 11:45 UTCJul 21, 14:50 UTC3h 5m
2026-07-19 N566AL - Jul 19, 14:50 UTCJul 19, 16:40 UTC1h 50m
2026-07-16 N566AL - Jul 16, 17:00 UTCJul 16, 17:20 UTC20m
2026-07-16 N566AL - Jul 16, 15:14 UTCJul 16, 16:15 UTC1h 0m
2026-07-14 N566AL - Jul 14, 18:15 UTCJul 14, 18:45 UTC30m
2026-07-14 N566AL - Jul 14, 17:15 UTCJul 14, 17:45 UTC30m
2026-07-12 N566AL - Jul 12, 23:50 UTCJul 13, 00:35 UTC45m
2026-07-10 N566AL - Jul 10, 19:35 UTCJul 10, 20:40 UTC1h 5m
2026-07-10 N566AL - Jul 10, 17:10 UTCJul 10, 17:45 UTC35m
2026-07-07 N566AL - Jul 7, 16:30 UTCJul 7, 18:20 UTC1h 50m
2026-07-06 N566AL - Jul 6, 18:25 UTCJul 6, 20:25 UTC2h 0m
2026-07-01 N566AL - Jul 1, 19:45 UTCJul 1, 20:25 UTC40m
2026-07-01 N566AL - Jul 1, 12:25 UTCJul 1, 14:25 UTC2h 0m
2026-06-30 N566AL - Jun 30, 18:55 UTCJun 30, 20:40 UTC1h 45m
2026-06-29 N566AL - Jun 29, 20:19 UTCJun 29, 21:14 UTC55m
2026-06-29 N566AL - Jun 29, 12:14 UTCJun 29, 14:09 UTC1h 55m
2026-06-27 N566AL - Jun 27, 20:09 UTCJun 27, 22:04 UTC1h 55m
2026-06-27 N566AL - Jun 27, 17:29 UTCJun 27, 19:24 UTC1h 55m
2026-06-27 N566AL - Jun 27, 13:44 UTCJun 27, 16:49 UTC3h 5m
2026-06-25 N566AL - Jun 25, 21:59 UTCJun 25, 23:24 UTC1h 25m
2026-06-25 N566AL - Jun 25, 12:15 UTCJun 25, 13:14 UTC1h 0m
2026-06-21 N566AL - Jun 21, 22:44 UTCJun 22, 00:10 UTC1h 25m
2026-06-21 N566AL - Jun 21, 17:39 UTCJun 21, 20:14 UTC2h 35m
2026-06-21 N566AL - Jun 21, 13:09 UTCJun 21, 16:04 UTC2h 55m
2026-06-19 N566AL - Jun 19, 16:59 UTCJun 19, 19:49 UTC2h 50m
2026-06-18 N566AL - Jun 18, 11:20 UTCJun 18, 12:50 UTC1h 30m
2026-06-18 N566AL - Jun 18, 10:15 UTCJun 18, 10:40 UTC25m
2026-06-17 N566AL - Jun 17, 19:20 UTCJun 17, 22:00 UTC2h 40m
2026-06-17 N566AL - Jun 17, 11:10 UTCJun 17, 13:05 UTC1h 55m
2026-06-14 N566AL - Jun 14, 18:00 UTCJun 14, 19:00 UTC1h 0m
2026-06-14 N566AL - Jun 14, 16:10 UTCJun 14, 17:00 UTC50m
2026-06-14 N566AL - Jun 14, 03:20 UTCJun 14, 06:00 UTC2h 41m
2026-06-14 N566AL - Jun 14, 00:00 UTCJun 14, 02:45 UTC2h 45m
2026-06-13 N566AL - Jun 13, 18:40 UTCJun 13, 20:40 UTC2h 0m
2026-06-13 N566AL - Jun 13, 16:00 UTCJun 13, 17:50 UTC1h 50m
2026-06-11 N566AL - Jun 11, 20:05 UTCJun 11, 21:05 UTC1h 0m
2026-06-11 N566AL - Jun 11, 18:25 UTCJun 11, 19:25 UTC1h 0m
2026-06-11 N566AL - Jun 11, 13:00 UTCJun 11, 14:50 UTC1h 50m
2026-06-10 N566AL - Jun 10, 22:40 UTCJun 10, 23:50 UTC1h 10m
2026-06-10 N566AL - Jun 10, 17:50 UTCJun 10, 18:40 UTC50m
2026-06-10 N566AL - Jun 10, 10:00 UTCJun 10, 13:05 UTC3h 5m
2026-06-06 N566AL - Jun 6, 12:35 UTCJun 6, 14:54 UTC2h 20m
2026-06-05 N566AL - Jun 5, 19:40 UTCJun 5, 22:20 UTC2h 40m
2026-06-05 N566AL - Jun 5, 16:00 UTCJun 5, 18:05 UTC2h 5m
2026-06-05 N566AL - Jun 5, 13:05 UTCJun 5, 15:00 UTC1h 55m
2026-06-02 N566AL - Jun 2, 18:55 UTCJun 2, 20:35 UTC1h 40m
2026-06-02 N566AL - Jun 2, 10:15 UTCJun 2, 11:55 UTC1h 40m

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 N566AL page for operator, model, and routing details .

Mode-S A73D3F frequently asked

What is Mode-S code A73D3F?
A73D3F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N566AL.
Where is Mode-S A73D3F registered?
Mode-S code A73D3F 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 A73D3F broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 03:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A73D3F, octal 51636477, decimal 10,960,191.
What flights does A73D3F operate?
Mode-S A73D3F has broadcast 1 distinct callsign, including N566AL.