Apparatus

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sensors Mode-S transponder

A9DBF1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N734WX · CESSNA T206 Turbo Stationair · operated by REDEMPTION INC

Hex
A9DBF1
Octal
52355761
Decimal
11,131,889
Country
US
Tail
N734WX
Type
T206
No current signal · last broadcast 8h ago
Flights observed
183
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A9DBF1.

Country allocation

The ICAO 24-bit address A9DBF1 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
N734WX - 183 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 N734WX - Jul 11, 22:01 UTCJul 11, 23:25 UTC1h 25m
2026-07-11 N734WX - Jul 11, 19:30 UTCJul 11, 21:00 UTC1h 30m
2026-07-11 N734WX - Jul 11, 01:35 UTCJul 11, 02:40 UTC1h 5m
2026-07-11 N734WX - Jul 11, 00:50 UTCJul 11, 01:05 UTC15m
2026-07-10 N734WX - Jul 10, 23:00 UTCJul 10, 23:25 UTC25m
2026-07-10 N734WX - Jul 10, 21:35 UTCJul 10, 22:15 UTC40m
2026-07-10 N734WX - Jul 10, 16:55 UTCJul 10, 17:00 UTC5m
2026-07-10 N734WX - Jul 10, 16:05 UTCJul 10, 16:15 UTC10m
2026-07-09 N734WX - Jul 9, 23:00 UTCJul 9, 23:10 UTC10m
2026-07-09 N734WX - Jul 9, 21:10 UTCJul 9, 21:20 UTC10m
2026-07-09 N734WX - Jul 9, 20:00 UTCJul 9, 20:40 UTC40m
2026-07-09 N734WX - Jul 9, 17:15 UTCJul 9, 17:55 UTC40m
2026-07-09 N734WX - Jul 9, 16:05 UTCJul 9, 16:50 UTC45m
2026-07-08 N734WX - Jul 8, 01:50 UTCJul 8, 02:30 UTC40m
2026-07-07 N734WX - Jul 7, 20:10 UTCJul 7, 22:45 UTC2h 35m
2026-07-07 N734WX - Jul 7, 17:35 UTCJul 7, 17:50 UTC15m
2026-07-07 N734WX - Jul 7, 16:15 UTCJul 7, 16:35 UTC20m
2026-07-07 N734WX - Jul 7, 01:10 UTCJul 7, 01:25 UTC15m
2026-07-07 N734WX - Jul 7, 00:05 UTCJul 7, 00:15 UTC10m
2026-07-06 N734WX - Jul 6, 23:35 UTCJul 6, 23:40 UTC5m
2026-07-06 N734WX - Jul 6, 22:30 UTCJul 6, 22:40 UTC10m
2026-07-06 N734WX - Jul 6, 17:35 UTCJul 6, 19:00 UTC1h 25m
2026-07-06 N734WX - Jul 6, 00:35 UTCJul 6, 01:15 UTC40m
2026-07-05 N734WX - Jul 5, 23:05 UTCJul 5, 23:15 UTC10m
2026-07-05 N734WX - Jul 5, 17:45 UTCJul 5, 17:50 UTC5m
2026-07-04 N734WX - Jul 4, 00:25 UTCJul 4, 00:35 UTC10m
2026-07-03 N734WX - Jul 3, 23:00 UTCJul 3, 23:10 UTC10m
2026-07-03 N734WX - Jul 3, 19:35 UTCJul 3, 21:35 UTC2h 0m
2026-07-03 N734WX - Jul 3, 18:15 UTCJul 3, 18:25 UTC10m
2026-07-03 N734WX - Jul 3, 16:05 UTCJul 3, 16:50 UTC45m
2026-07-02 N734WX - Jul 2, 19:55 UTCJul 2, 20:35 UTC40m
2026-07-01 N734WX - Jul 1, 23:10 UTCJul 1, 23:20 UTC10m
2026-07-01 N734WX - Jul 1, 17:05 UTCJul 1, 17:20 UTC15m
2026-07-01 N734WX - Jul 1, 16:15 UTCJul 1, 16:20 UTC5m
2026-06-30 N734WX - Jun 30, 16:25 UTCJun 30, 17:10 UTC45m
2026-06-29 N734WX - Jun 29, 16:29 UTCJun 29, 17:19 UTC50m
2026-06-29 N734WX - Jun 29, 01:05 UTCJun 29, 01:14 UTC10m
2026-06-28 N734WX - Jun 28, 23:44 UTCJun 29, 00:20 UTC35m
2026-06-28 N734WX - Jun 28, 22:29 UTCJun 28, 23:39 UTC1h 10m
2026-06-28 N734WX - Jun 28, 16:09 UTCJun 28, 16:14 UTC5m
2026-06-27 N734WX - Jun 27, 23:34 UTCJun 28, 00:09 UTC35m
2026-06-27 N734WX - Jun 27, 22:09 UTCJun 27, 22:49 UTC40m
2026-06-27 N734WX - Jun 27, 20:55 UTCJun 27, 21:34 UTC40m
2026-06-27 N734WX - Jun 27, 19:29 UTCJun 27, 20:29 UTC1h 0m
2026-06-27 N734WX - Jun 27, 16:55 UTCJun 27, 17:04 UTC10m
2026-06-27 N734WX - Jun 27, 16:00 UTCJun 27, 16:04 UTC5m
2026-06-27 N734WX - Jun 27, 00:50 UTCJun 27, 01:49 UTC1h 0m
2026-06-27 N734WX - Jun 27, 00:10 UTCJun 27, 00:34 UTC25m
2026-06-26 N734WX - Jun 26, 23:04 UTCJun 26, 23:19 UTC15m
2026-06-26 N734WX - Jun 26, 21:39 UTCJun 26, 22:25 UTC45m

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 N734WX page for operator, model, and routing details .

Mode-S A9DBF1 frequently asked

What is Mode-S code A9DBF1?
A9DBF1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N734WX.
Where is Mode-S A9DBF1 registered?
Mode-S code A9DBF1 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 A9DBF1 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9DBF1, octal 52355761, decimal 11,131,889.
What flights does A9DBF1 operate?
Mode-S A9DBF1 has broadcast 1 distinct callsign, including N734WX.