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sensors Mode-S transponder

AA9447

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N781AK · BEECH 100 King Air · operated by ALSWORTH GLEN SR

Hex
AA9447
Octal
52512107
Decimal
11,179,079
Country
US
Tail
N781AK
Type
BE10
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
26
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AA9447.

Country allocation

The ICAO 24-bit address AA9447 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
N781AK - 26 2026-07-26

Recent flights last 26

DateFlightRouteTakeoffLandingDuration
2026-07-26 N781AK - Jul 26, 20:50 UTCJul 26, 21:25 UTC35m
2026-07-26 N781AK - Jul 26, 16:30 UTCJul 26, 18:10 UTC1h 40m
2026-07-26 N781AK - Jul 26, 15:10 UTCJul 26, 15:50 UTC40m
2026-07-26 N781AK - Jul 26, 04:10 UTCJul 26, 04:45 UTC35m
2026-07-26 N781AK - Jul 26, 02:15 UTCJul 26, 03:05 UTC50m
2026-07-20 N781AK - Jul 20, 00:05 UTCJul 20, 01:05 UTC1h 0m
2026-07-19 N781AK - Jul 19, 17:50 UTCJul 19, 18:30 UTC40m
2026-07-19 N781AK - Jul 19, 15:35 UTCJul 19, 16:30 UTC55m
2026-07-19 N781AK - Jul 19, 14:25 UTCJul 19, 15:00 UTC35m
2026-07-19 N781AK - Jul 19, 04:10 UTCJul 19, 05:00 UTC50m
2026-07-19 N781AK - Jul 19, 02:20 UTCJul 19, 03:05 UTC45m
2026-07-18 N781AK - Jul 18, 03:35 UTCJul 18, 04:15 UTC40m
2026-07-17 N781AK - Jul 17, 22:35 UTCJul 18, 00:19 UTC1h 45m
2026-07-17 N781AK - Jul 17, 17:25 UTCJul 17, 19:45 UTC2h 20m
2026-07-16 N781AK - Jul 16, 23:59 UTCJul 17, 01:29 UTC1h 30m
2026-07-16 N781AK - Jul 16, 21:19 UTCJul 16, 23:10 UTC1h 50m
2026-07-16 N781AK - Jul 16, 20:15 UTCJul 16, 20:35 UTC20m
2026-07-16 N781AK - Jul 16, 17:14 UTCJul 16, 20:05 UTC2h 50m
2026-07-16 N781AK - Jul 16, 03:35 UTCJul 16, 04:10 UTC35m
2026-07-13 N781AK - Jul 13, 23:05 UTCJul 13, 23:30 UTC25m
2026-07-13 N781AK - Jul 13, 17:30 UTCJul 13, 18:10 UTC40m
2026-07-13 N781AK - Jul 13, 00:20 UTCJul 13, 01:20 UTC1h 0m
2026-07-12 N781AK - Jul 12, 22:40 UTCJul 12, 23:20 UTC40m
2026-07-12 N781AK - Jul 12, 16:50 UTCJul 12, 17:50 UTC1h 0m
2026-07-12 N781AK - Jul 12, 15:05 UTCJul 12, 15:45 UTC40m
2026-07-12 N781AK - Jul 12, 03:10 UTCJul 12, 03:45 UTC35m

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 N781AK page for operator, model, and routing details .

Mode-S AA9447 frequently asked

What is Mode-S code AA9447?
AA9447 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N781AK.
Where is Mode-S AA9447 registered?
Mode-S code AA9447 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 AA9447 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9447, octal 52512107, decimal 11,179,079.
What flights does AA9447 operate?
Mode-S AA9447 has broadcast 1 distinct callsign, including N781AK.