Apparatus

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sensors Mode-S transponder

A5CC53

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N473AV · operated by WESTWIND SCHOOL OF AERONAUTICS PHOENIX LLC DBA, UNITED AVIATE ACADEMY

Hex
A5CC53
Octal
51346123
Decimal
10,865,747
Country
US
Tail
N473AV
Type
SR20
No current signal · last broadcast 12h ago
Flights observed
262
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A5CC53.

Country allocation

The ICAO 24-bit address A5CC53 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
VAR473 - 262 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 VAR473 GYR → GYR Jul 17, 23:39 UTCJul 18, 01:00 UTC1h 20m
2026-07-17 VAR473 GYR → GYR Jul 17, 19:45 UTCJul 17, 21:34 UTC1h 50m
2026-07-16 VAR473 GYR → GYR Jul 16, 19:14 UTCJul 16, 19:55 UTC40m
2026-07-16 VAR473 GYR → GYR Jul 16, 16:00 UTCJul 16, 17:35 UTC1h 35m
2026-07-15 VAR473 GYR → GYR Jul 15, 22:25 UTCJul 16, 00:35 UTC2h 10m
2026-07-15 VAR473 - Jul 15, 20:05 UTCJul 15, 21:10 UTC1h 5m
2026-07-10 VAR473 - Jul 10, 14:30 UTCJul 10, 15:40 UTC1h 10m
2026-07-09 VAR473 GYR → GYR Jul 9, 22:30 UTCJul 10, 00:20 UTC1h 50m
2026-07-09 VAR473 GYR → GYR Jul 9, 19:25 UTCJul 9, 20:20 UTC55m
2026-07-09 VAR473 GYR → GYR Jul 9, 16:15 UTCJul 9, 17:50 UTC1h 35m
2026-07-09 VAR473 GYR → GYR Jul 9, 13:25 UTCJul 9, 14:35 UTC1h 10m
2026-07-09 VAR473 GYR → GYR Jul 9, 04:05 UTCJul 9, 04:50 UTC45m
2026-07-08 VAR473 HII → GYR Jul 8, 23:00 UTCJul 9, 01:10 UTC2h 10m
2026-07-08 VAR473 - Jul 8, 20:55 UTCJul 8, 21:30 UTC35m
2026-07-08 VAR473 - Jul 8, 19:15 UTCJul 8, 19:55 UTC40m
2026-07-08 VAR473 - Jul 8, 16:10 UTCJul 8, 17:35 UTC1h 25m
2026-07-08 VAR473 GYR → GYR Jul 8, 12:40 UTCJul 8, 14:20 UTC1h 40m
2026-07-08 VAR473 - Jul 8, 03:45 UTCJul 8, 05:20 UTC1h 35m
2026-07-08 VAR473 - Jul 8, 01:50 UTCJul 8, 03:15 UTC1h 25m
2026-07-07 VAR473 GYR → GYR Jul 7, 23:00 UTCJul 8, 00:40 UTC1h 40m
2026-07-07 VAR473 GYR → GYR Jul 7, 19:05 UTCJul 7, 20:35 UTC1h 30m
2026-07-07 VAR473 - Jul 7, 16:20 UTCJul 7, 17:40 UTC1h 20m
2026-07-07 VAR473 - Jul 7, 14:00 UTCJul 7, 15:00 UTC1h 0m
2026-07-07 VAR473 GYR → GYR Jul 7, 01:35 UTCJul 7, 03:15 UTC1h 40m
2026-07-06 VAR473 - Jul 6, 20:55 UTCJul 6, 22:25 UTC1h 30m
2026-07-06 VAR473 GYR → GYR Jul 6, 15:50 UTCJul 6, 17:55 UTC2h 5m
2026-07-06 VAR473 GYR → GYR Jul 6, 00:45 UTCJul 6, 01:45 UTC1h 0m
2026-07-05 VAR473 GYR → GYR Jul 5, 20:45 UTCJul 5, 22:40 UTC1h 55m
2026-07-05 VAR473 GYR → GYR Jul 5, 16:15 UTCJul 5, 17:05 UTC50m
2026-07-04 VAR473 GYR → GYR Jul 4, 20:45 UTCJul 4, 22:35 UTC1h 50m
2026-07-03 VAR473 GYR → GYR Jul 3, 21:20 UTCJul 3, 23:45 UTC2h 25m
2026-07-03 VAR473 GYR → GYR Jul 3, 16:45 UTCJul 3, 18:35 UTC1h 50m
2026-07-03 VAR473 - Jul 3, 03:25 UTCJul 3, 04:45 UTC1h 20m
2026-07-03 VAR473 - Jul 3, 00:50 UTCJul 3, 02:35 UTC1h 45m
2026-07-02 VAR473 - Jul 2, 21:45 UTCJul 2, 22:50 UTC1h 5m
2026-07-02 VAR473 - Jul 2, 16:05 UTCJul 2, 17:05 UTC1h 0m
2026-07-02 VAR473 GYR → BXK Jul 2, 13:30 UTCJul 2, 14:35 UTC1h 5m
2026-07-02 VAR473 - Jul 2, 03:45 UTCJul 2, 05:15 UTC1h 30m
2026-07-02 VAR473 GYR → GYR Jul 2, 02:00 UTCJul 2, 03:10 UTC1h 10m
2026-07-01 VAR473 - Jul 1, 22:45 UTCJul 1, 23:50 UTC1h 5m
2026-07-01 VAR473 - Jul 1, 19:40 UTCJul 1, 21:00 UTC1h 20m
2026-07-01 VAR473 - Jul 1, 15:55 UTCJul 1, 17:30 UTC1h 35m
2026-06-30 VAR473 GYR → GYR Jun 30, 04:10 UTCJun 30, 06:15 UTC2h 5m
2026-06-29 VAR473 GYR → GYR Jun 29, 23:39 UTCJun 30, 01:40 UTC2h 1m
2026-06-29 VAR473 GYR → GYR Jun 29, 19:49 UTCJun 29, 20:59 UTC1h 10m
2026-06-29 VAR473 GYR → GYR Jun 29, 16:25 UTCJun 29, 18:10 UTC1h 45m
2026-06-29 VAR473 GYR → GYR Jun 29, 02:25 UTCJun 29, 03:54 UTC1h 30m
2026-06-28 VAR473 GYR → GYR Jun 28, 23:09 UTCJun 29, 01:14 UTC2h 5m
2026-06-28 VAR473 GYR → GYR Jun 28, 20:29 UTCJun 28, 22:04 UTC1h 35m
2026-06-28 VAR473 GYR → GYR Jun 28, 00:15 UTCJun 28, 01:34 UTC1h 20m

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 N473AV page for operator, model, and routing details .

Mode-S A5CC53 frequently asked

What is Mode-S code A5CC53?
A5CC53 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N473AV.
Where is Mode-S A5CC53 registered?
Mode-S code A5CC53 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 A5CC53 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5CC53, octal 51346123, decimal 10,865,747.
What flights does A5CC53 operate?
Mode-S A5CC53 has broadcast 1 distinct callsign, including VAR473.