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sensors Mode-S transponder

A9ED3F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N739HX · CESSNA 172 Skyhawk · operated by 739HX LLC

Hex
A9ED3F
Octal
52366477
Decimal
11,136,319
Country
US
Tail
N739HX
Type
C172
Broadcasting now · callsign N739HX · 4,100 ft
Flights observed
263
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:05 UTC

Current position

A9ED3F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9ED3F 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
N739HX - 263 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N739HX JXN → JXN Jul 26, 19:35 UTCJul 26, 21:05 UTC1h 30m
2026-07-25 N739HX - Jul 25, 22:25 UTCJul 25, 23:25 UTC1h 0m
2026-07-25 N739HX - Jul 25, 19:50 UTCJul 25, 21:00 UTC1h 10m
2026-07-25 N739HX JXN → JXN Jul 25, 14:45 UTCJul 25, 15:55 UTC1h 10m
2026-07-24 N739HX JXN → JXN Jul 24, 21:30 UTCJul 24, 22:00 UTC30m
2026-07-24 N739HX - Jul 24, 19:15 UTCJul 24, 20:45 UTC1h 30m
2026-07-24 N739HX - Jul 24, 17:45 UTCJul 24, 18:35 UTC50m
2026-07-24 N739HX - Jul 24, 13:00 UTCJul 24, 14:40 UTC1h 40m
2026-07-23 N739HX JXN → JXN Jul 23, 19:35 UTCJul 23, 20:55 UTC1h 20m
2026-07-23 N739HX - Jul 23, 18:15 UTCJul 23, 18:50 UTC35m
2026-07-23 N739HX JXN → JXN Jul 23, 16:35 UTCJul 23, 17:05 UTC30m
2026-07-23 N739HX JXN → JXN Jul 23, 15:30 UTCJul 23, 16:00 UTC30m
2026-07-22 N739HX - Jul 22, 21:45 UTCJul 23, 00:15 UTC2h 30m
2026-07-22 N739HX JXN → JXN Jul 22, 18:55 UTCJul 22, 20:00 UTC1h 5m
2026-07-21 N739HX - Jul 21, 14:20 UTCJul 21, 14:45 UTC25m
2026-07-20 N739HX - Jul 20, 20:40 UTCJul 20, 21:30 UTC50m
2026-07-19 N739HX JXN → JXN Jul 19, 12:55 UTCJul 19, 13:10 UTC15m
2026-07-18 N739HX JXN → JXN Jul 18, 13:35 UTCJul 18, 14:20 UTC45m
2026-07-15 N739HX JXN → JXN Jul 15, 23:00 UTCJul 15, 23:55 UTC55m
2026-07-15 N739HX - Jul 15, 13:40 UTCJul 15, 15:10 UTC1h 30m
2026-07-14 N739HX JXN → JXN Jul 14, 22:50 UTCJul 14, 23:40 UTC50m
2026-07-14 N739HX - Jul 14, 20:45 UTCJul 14, 21:45 UTC1h 0m
2026-07-14 N739HX - Jul 14, 16:45 UTCJul 14, 18:05 UTC1h 20m
2026-07-14 N739HX - Jul 14, 15:00 UTCJul 14, 16:05 UTC1h 5m
2026-07-14 N739HX JXN → JXN Jul 14, 12:40 UTCJul 14, 13:45 UTC1h 5m
2026-07-13 N739HX JXN → JXN Jul 13, 23:00 UTCJul 13, 23:55 UTC55m
2026-07-13 N739HX - Jul 13, 19:30 UTCJul 13, 20:05 UTC35m
2026-07-13 N739HX JXN → JXN Jul 13, 17:20 UTCJul 13, 18:15 UTC55m
2026-07-13 N739HX JXN → JXN Jul 13, 13:35 UTCJul 13, 15:05 UTC1h 30m
2026-07-13 N739HX JXN → JXN Jul 13, 12:10 UTCJul 13, 12:55 UTC45m
2026-07-12 N739HX - Jul 12, 19:45 UTCJul 12, 21:25 UTC1h 40m
2026-07-12 N739HX JXN → JXN Jul 12, 14:50 UTCJul 12, 15:45 UTC55m
2026-07-12 N739HX - Jul 12, 00:20 UTCJul 12, 01:35 UTC1h 15m
2026-07-11 N739HX - Jul 11, 17:15 UTCJul 11, 18:30 UTC1h 15m
2026-07-11 N739HX JXN → JXN Jul 11, 15:00 UTCJul 11, 15:55 UTC55m
2026-07-11 N739HX - Jul 11, 13:25 UTCJul 11, 13:50 UTC25m
2026-07-11 N739HX - Jul 11, 12:00 UTCJul 11, 12:10 UTC10m
2026-07-10 N739HX JXN → JXN Jul 10, 21:55 UTCJul 10, 23:50 UTC1h 55m
2026-07-10 N739HX - Jul 10, 18:00 UTCJul 10, 19:50 UTC1h 50m
2026-07-10 N739HX - Jul 10, 13:40 UTCJul 10, 14:45 UTC1h 5m
2026-07-09 N739HX - Jul 9, 18:00 UTCJul 9, 18:30 UTC30m
2026-07-09 N739HX - Jul 9, 01:55 UTCJul 9, 02:15 UTC20m
2026-07-08 N739HX - Jul 8, 19:40 UTCJul 8, 21:25 UTC1h 45m
2026-07-08 N739HX - Jul 8, 15:30 UTCJul 8, 17:30 UTC2h 0m
2026-07-08 N739HX - Jul 8, 12:35 UTCJul 8, 14:05 UTC1h 30m
2026-07-08 N739HX JXN → JXN Jul 8, 10:55 UTCJul 8, 11:50 UTC55m
2026-07-07 N739HX JXN → JXN Jul 7, 23:25 UTCJul 8, 00:10 UTC45m
2026-07-07 N739HX JXN → JXN Jul 7, 21:35 UTCJul 7, 22:40 UTC1h 5m
2026-07-04 N739HX - Jul 4, 13:20 UTCJul 4, 13:55 UTC35m
2026-07-01 N739HX - Jul 1, 18:35 UTCJul 1, 20:05 UTC1h 30m

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 N739HX page for operator, model, and routing details .

Mode-S A9ED3F frequently asked

What is Mode-S code A9ED3F?
A9ED3F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N739HX.
Where is Mode-S A9ED3F registered?
Mode-S code A9ED3F 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 A9ED3F broadcasting right now?
Yes. Mode-S A9ED3F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9ED3F, octal 52366477, decimal 11,136,319.
What flights does A9ED3F operate?
Mode-S A9ED3F has broadcast 1 distinct callsign, including N739HX.