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sensors Mode-S transponder

A9DAC9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N734KA · CESSNA 172 Skyhawk · operated by H&M AIR LLC

Hex
A9DAC9
Octal
52355311
Decimal
11,131,593
Country
US
Tail
N734KA
Type
C172
No current signal · last broadcast Jul 26, 21:05 UTC
Flights observed
155
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:05 UTC

Last known position

Most recent position reported by Mode-S A9DAC9.

Country allocation

The ICAO 24-bit address A9DAC9 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
N734KA - 155 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N734KA - Jul 26, 20:30 UTCJul 26, 21:05 UTC35m
2026-07-25 N734KA FNT → FNT Jul 25, 20:00 UTCJul 25, 20:50 UTC50m
2026-07-25 N734KA - Jul 25, 17:00 UTCJul 25, 17:50 UTC50m
2026-07-24 N734KA - Jul 24, 23:10 UTCJul 25, 00:15 UTC1h 5m
2026-07-24 N734KA - Jul 24, 17:10 UTCJul 24, 18:35 UTC1h 25m
2026-07-24 N734KA - Jul 24, 13:40 UTCJul 24, 14:40 UTC1h 0m
2026-07-24 N734KA - Jul 24, 12:35 UTCJul 24, 12:50 UTC15m
2026-07-24 N734KA - Jul 24, 01:00 UTCJul 24, 02:10 UTC1h 10m
2026-07-23 N734KA - Jul 23, 22:45 UTCJul 23, 23:55 UTC1h 10m
2026-07-22 N734KA - Jul 22, 20:10 UTCJul 22, 20:50 UTC40m
2026-07-21 N734KA - Jul 21, 15:45 UTCJul 21, 15:55 UTC10m
2026-07-20 N734KA - Jul 20, 21:30 UTCJul 20, 22:25 UTC55m
2026-07-20 N734KA FNT → FNT Jul 20, 13:15 UTCJul 20, 13:45 UTC30m
2026-07-15 N734KA FNT → FNT Jul 15, 16:45 UTCJul 15, 18:00 UTC1h 15m
2026-07-15 N734KA - Jul 15, 13:40 UTCJul 15, 15:00 UTC1h 20m
2026-07-15 N734KA FNT → FNT Jul 15, 11:40 UTCJul 15, 12:45 UTC1h 5m
2026-07-14 N734KA - Jul 14, 14:35 UTCJul 14, 16:00 UTC1h 25m
2026-07-14 N734KA - Jul 14, 12:35 UTCJul 14, 13:30 UTC55m
2026-07-13 N734KA - Jul 13, 22:00 UTCJul 14, 00:20 UTC2h 20m
2026-07-13 N734KA FNT → FNT Jul 13, 13:45 UTCJul 13, 15:00 UTC1h 15m
2026-07-13 N734KA FNT → FNT Jul 13, 02:10 UTCJul 13, 04:35 UTC2h 25m
2026-07-12 N734KA FNT → FNT Jul 12, 22:30 UTCJul 12, 23:15 UTC45m
2026-07-12 N734KA - Jul 12, 20:40 UTCJul 12, 21:15 UTC35m
2026-07-12 N734KA - Jul 12, 12:25 UTCJul 12, 13:01 UTC35m
2026-07-11 N734KA - Jul 11, 16:15 UTCJul 11, 16:50 UTC35m
2026-07-11 N734KA - Jul 11, 12:20 UTCJul 11, 13:05 UTC45m
2026-07-08 N734KA FNT → FNT Jul 8, 22:20 UTCJul 8, 23:15 UTC55m
2026-07-08 N734KA - Jul 8, 12:35 UTCJul 8, 13:40 UTC1h 5m
2026-07-07 N734KA - Jul 7, 22:55 UTCJul 8, 00:35 UTC1h 40m
2026-07-07 N734KA - Jul 7, 12:15 UTCJul 7, 12:40 UTC25m
2026-07-06 N734KA - Jul 6, 22:05 UTCJul 6, 22:55 UTC50m
2026-07-06 N734KA - Jul 6, 19:05 UTCJul 6, 19:55 UTC50m
2026-07-06 N734KA - Jul 6, 17:00 UTCJul 6, 18:05 UTC1h 5m
2026-07-06 N734KA - Jul 6, 14:30 UTCJul 6, 15:25 UTC55m
2026-07-05 N734KA - Jul 5, 19:00 UTCJul 5, 19:55 UTC55m
2026-07-05 N734KA - Jul 5, 15:35 UTCJul 5, 16:10 UTC35m
2026-07-05 N734KA - Jul 5, 14:10 UTCJul 5, 14:45 UTC35m
2026-07-05 N734KA - Jul 5, 13:20 UTCJul 5, 13:35 UTC15m
2026-07-03 N734KA FNT → FNT Jul 3, 18:30 UTCJul 3, 19:50 UTC1h 20m
2026-07-03 N734KA FNT → FNT Jul 3, 15:00 UTCJul 3, 16:05 UTC1h 5m
2026-07-01 N734KA - Jul 1, 20:45 UTCJul 1, 21:50 UTC1h 5m
2026-07-01 N734KA FNT → FNT Jul 1, 18:40 UTCJul 1, 19:50 UTC1h 10m
2026-06-30 N734KA FNT → FNT Jun 30, 19:30 UTCJun 30, 20:15 UTC45m
2026-06-30 N734KA FNT → FNT Jun 30, 16:15 UTCJun 30, 16:50 UTC35m
2026-06-30 N734KA - Jun 30, 13:15 UTCJun 30, 13:40 UTC25m
2026-06-29 N734KA - Jun 29, 19:35 UTCJun 29, 20:15 UTC40m
2026-06-28 N734KA - Jun 28, 21:10 UTCJun 28, 22:10 UTC1h 0m
2026-06-28 N734KA - Jun 28, 18:55 UTCJun 28, 20:04 UTC1h 10m
2026-06-28 N734KA - Jun 28, 01:50 UTCJun 28, 02:25 UTC35m
2026-06-24 N734KA - Jun 24, 17:14 UTCJun 24, 18:29 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 N734KA page for operator, model, and routing details .

Mode-S A9DAC9 frequently asked

What is Mode-S code A9DAC9?
A9DAC9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N734KA.
Where is Mode-S A9DAC9 registered?
Mode-S code A9DAC9 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 A9DAC9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9DAC9, octal 52355311, decimal 11,131,593.
What flights does A9DAC9 operate?
Mode-S A9DAC9 has broadcast 1 distinct callsign, including N734KA.