Apparatus

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sensors Mode-S transponder

A5DEE6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N478AV · operated by WESTWIND SCHOOL OF AERONAUTICS PHOENIX LLC, UNITED AVIATE ACADEMY

Hex
A5DEE6
Octal
51357346
Decimal
10,870,502
Country
US
Tail
N478AV
Type
SR20
No current signal · last broadcast Jul 25, 23:40 UTC
Flights observed
241
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 23:40 UTC

Last known position

Most recent position reported by Mode-S A5DEE6.

Country allocation

The ICAO 24-bit address A5DEE6 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
VAR478 - 241 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 VAR478 - Jul 25, 22:55 UTCJul 25, 23:35 UTC40m
2026-07-25 VAR478 - Jul 25, 21:25 UTCJul 25, 22:20 UTC55m
2026-07-25 VAR478 - Jul 25, 17:40 UTCJul 25, 20:35 UTC2h 55m
2026-07-25 VAR478 - Jul 25, 14:10 UTCJul 25, 16:50 UTC2h 40m
2026-07-24 VAR478 - Jul 24, 23:20 UTCJul 25, 00:10 UTC50m
2026-07-24 VAR478 - Jul 24, 21:55 UTCJul 24, 22:45 UTC50m
2026-07-23 VAR478 - Jul 23, 19:55 UTCJul 23, 21:00 UTC1h 5m
2026-07-23 VAR478 GYR → TUS Jul 23, 18:05 UTCJul 23, 19:05 UTC1h 0m
2026-07-22 VAR478 - Jul 22, 19:40 UTCJul 22, 22:20 UTC2h 40m
2026-07-22 VAR478 GYR → GYR Jul 22, 16:00 UTCJul 22, 16:25 UTC25m
2026-07-20 VAR478 - Jul 20, 20:15 UTCJul 20, 20:25 UTC10m
2026-07-20 VAR478 GYR → GYR Jul 20, 17:50 UTCJul 20, 20:00 UTC2h 10m
2026-07-20 VAR478 GYR → GYR Jul 20, 04:55 UTCJul 20, 05:10 UTC15m
2026-07-20 VAR478 - Jul 20, 04:40 UTCJul 20, 04:45 UTC5m
2026-07-20 VAR478 - Jul 20, 04:20 UTCJul 20, 04:35 UTC15m
2026-07-20 VAR478 GYR → GYR Jul 20, 04:05 UTCJul 20, 04:15 UTC10m
2026-07-20 VAR478 GYR → GYR Jul 20, 03:50 UTCJul 20, 04:00 UTC10m
2026-07-20 VAR478 GYR → GYR Jul 20, 03:40 UTCJul 20, 03:45 UTC5m
2026-07-18 VAR478 - Jul 18, 04:45 UTCJul 18, 04:50 UTC5m
2026-07-18 VAR478 - Jul 18, 04:15 UTCJul 18, 04:20 UTC5m
2026-07-18 VAR478 - Jul 18, 04:00 UTCJul 18, 04:05 UTC5m
2026-07-18 VAR478 GYR → GYR Jul 18, 03:50 UTCJul 18, 03:55 UTC5m
2026-07-17 VAR478 - Jul 17, 18:19 UTCJul 17, 21:05 UTC2h 45m
2026-07-17 VAR478 - Jul 17, 14:50 UTCJul 17, 17:25 UTC2h 35m
2026-07-16 VAR478 VNY → GYR Jul 16, 19:45 UTCJul 16, 22:15 UTC2h 30m
2026-07-16 VAR478 GYR → VNY Jul 16, 14:00 UTCJul 16, 16:30 UTC2h 30m
2026-07-15 VAR478 - Jul 15, 23:05 UTCJul 16, 01:05 UTC2h 0m
2026-07-15 VAR478 GYR → BXK Jul 15, 20:10 UTCJul 15, 21:55 UTC1h 45m
2026-07-15 VAR478 GYR → GYR Jul 15, 17:25 UTCJul 15, 18:45 UTC1h 20m
2026-07-14 VAR478 GYR → GYR Jul 14, 19:30 UTCJul 14, 20:40 UTC1h 10m
2026-07-14 VAR478 - Jul 14, 17:10 UTCJul 14, 18:20 UTC1h 10m
2026-07-14 VAR478 GYR → BXK Jul 14, 14:35 UTCJul 14, 15:50 UTC1h 15m
2026-07-13 VAR478 GYR → GYR Jul 13, 20:30 UTCJul 13, 22:30 UTC2h 0m
2026-07-01 VAR478 GYR → GYR Jul 1, 22:00 UTCJul 1, 23:35 UTC1h 35m
2026-07-01 VAR478 GYR → GYR Jul 1, 17:35 UTCJul 1, 18:50 UTC1h 15m
2026-07-01 VAR478 GYR → GYR Jul 1, 14:55 UTCJul 1, 16:25 UTC1h 30m
2026-06-30 VAR478 GYR → GYR Jun 30, 19:05 UTCJun 30, 20:50 UTC1h 45m
2026-06-30 VAR478 - Jun 30, 16:25 UTCJun 30, 18:10 UTC1h 45m
2026-06-25 VAR478 GYR → GYR Jun 25, 23:14 UTCJun 26, 00:39 UTC1h 25m
2026-06-24 VAR478 - Jun 24, 16:05 UTCJun 24, 17:05 UTC1h 0m
2026-06-24 VAR478 - Jun 24, 14:15 UTCJun 24, 15:14 UTC1h 0m
2026-06-24 VAR478 - Jun 24, 04:39 UTCJun 24, 06:25 UTC1h 45m
2026-06-24 VAR478 BXK → BXK Jun 24, 04:15 UTCJun 24, 04:24 UTC10m
2026-06-24 VAR478 BXK → BXK Jun 24, 03:29 UTCJun 24, 03:55 UTC25m
2026-06-24 VAR478 GYR → BXK Jun 24, 00:25 UTCJun 24, 02:49 UTC2h 25m
2026-06-23 VAR478 GYR → GYR Jun 23, 19:15 UTCJun 23, 21:29 UTC2h 15m
2026-06-23 VAR478 GYR → GYR Jun 23, 16:24 UTCJun 23, 17:59 UTC1h 35m
2026-06-23 VAR478 GYR → GYR Jun 23, 13:24 UTCJun 23, 14:44 UTC1h 20m
2026-06-23 VAR478 GYR → GYR Jun 23, 00:30 UTCJun 23, 01:40 UTC1h 10m
2026-06-22 VAR478 GYR → GYR Jun 22, 21:30 UTCJun 22, 23:05 UTC1h 35m

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 N478AV page for operator, model, and routing details .

Mode-S A5DEE6 frequently asked

What is Mode-S code A5DEE6?
A5DEE6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N478AV.
Where is Mode-S A5DEE6 registered?
Mode-S code A5DEE6 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 A5DEE6 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 23:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5DEE6, octal 51357346, decimal 10,870,502.
What flights does A5DEE6 operate?
Mode-S A5DEE6 has broadcast 1 distinct callsign, including VAR478.