Apparatus

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sensors Mode-S transponder

A6A303

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N527AV · operated by WESTWIND SCHOOL OF AERONAUTICS PHOENIX LLC DBA, UNITED AVIATE ACADEMY

Hex
A6A303
Octal
51521403
Decimal
10,920,707
Country
US
Tail
N527AV
Type
SR20
No current signal · last broadcast 1d ago
Flights observed
145
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A6A303.

Country allocation

The ICAO 24-bit address A6A303 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
VAR527 - 145 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 VAR527 - May 28, 21:10 UTCMay 28, 22:40 UTC1h 30m
2026-05-28 VAR527 GYR → GYR May 28, 18:05 UTCMay 28, 19:40 UTC1h 35m
2026-05-28 VAR527 GYR → GYR May 28, 15:00 UTCMay 28, 16:55 UTC1h 55m
2026-05-27 VAR527 GYR → GYR May 27, 23:00 UTCMay 28, 00:50 UTC1h 50m
2026-05-27 VAR527 GYR → GYR May 27, 17:00 UTCMay 27, 17:40 UTC40m
2026-05-26 VAR527 GYR → GYR May 26, 18:24 UTCMay 26, 19:25 UTC1h 0m
2026-05-26 VAR527 BXK → GYR May 26, 16:10 UTCMay 26, 17:15 UTC1h 5m
2026-05-26 VAR527 GYR → BXK May 26, 14:00 UTCMay 26, 15:00 UTC1h 0m
2026-05-25 VAR527 AZA → GYR May 25, 02:05 UTCMay 25, 03:10 UTC1h 5m
2026-05-24 VAR527 - May 24, 23:10 UTCMay 24, 23:46 UTC36m
2026-05-24 VAR527 - May 24, 21:15 UTCMay 24, 21:45 UTC30m
2026-05-24 VAR527 - May 24, 18:45 UTCMay 24, 20:10 UTC1h 25m
2026-05-24 VAR527 - May 24, 17:20 UTCMay 24, 18:05 UTC45m
2026-05-24 VAR527 GYR → GYR May 24, 03:40 UTCMay 24, 04:50 UTC1h 10m
2026-05-23 VAR527 GYR → GYR May 23, 23:15 UTCMay 24, 00:50 UTC1h 35m
2026-05-23 VAR527 BXK → GYR May 23, 19:30 UTCMay 23, 20:55 UTC1h 25m
2026-05-23 VAR527 GYR → BXK May 23, 16:30 UTCMay 23, 18:30 UTC2h 1m
2026-05-23 VAR527 GYR → GYR May 23, 00:35 UTCMay 23, 02:15 UTC1h 40m
2026-05-22 VAR527 BXK → GYR May 22, 19:40 UTCMay 22, 20:40 UTC1h 0m
2026-05-22 VAR527 GYR → BXK May 22, 17:55 UTCMay 22, 18:50 UTC55m
2026-05-22 VAR527 - May 22, 04:55 UTCMay 22, 05:00 UTC5m
2026-05-22 VAR527 GYR → GYR May 22, 04:30 UTCMay 22, 04:50 UTC20m
2026-05-22 VAR527 GYR → GYR May 22, 03:55 UTCMay 22, 04:05 UTC10m
2026-05-22 VAR527 - May 22, 03:30 UTCMay 22, 03:40 UTC10m
2026-05-22 VAR527 - May 22, 01:10 UTCMay 22, 01:55 UTC45m
2026-05-21 VAR527 - May 21, 21:55 UTCMay 21, 22:35 UTC40m
2026-05-21 VAR527 - May 21, 20:20 UTCMay 21, 20:55 UTC35m
2026-05-21 VAR527 - May 21, 18:55 UTCMay 21, 19:15 UTC20m
2026-05-21 VAR527 - May 21, 17:00 UTCMay 21, 17:35 UTC35m
2026-05-21 VAR527 - May 21, 15:25 UTCMay 21, 15:55 UTC30m
2026-05-21 VAR527 GYR → GYR May 21, 03:55 UTCMay 21, 05:20 UTC1h 25m
2026-05-20 VAR527 - May 20, 19:45 UTCMay 20, 21:25 UTC1h 40m
2026-05-20 VAR527 GYR → GYR May 20, 16:25 UTCMay 20, 17:25 UTC1h 0m
2026-05-19 VAR527 GYR → GYR May 19, 18:55 UTCMay 19, 20:15 UTC1h 20m
2026-05-19 VAR527 GYR → GYR May 19, 00:30 UTCMay 19, 01:35 UTC1h 5m
2026-05-18 VAR527 GYR → GYR May 18, 17:10 UTCMay 18, 18:45 UTC1h 34m
2026-05-17 VAR527 GYR → GYR May 17, 21:55 UTCMay 17, 22:01 UTC5m
2026-05-17 VAR527 - May 17, 21:10 UTCMay 17, 21:25 UTC15m
2026-05-17 VAR527 - May 17, 20:55 UTCMay 17, 21:01 UTC5m
2026-05-17 VAR527 GYR → GYR May 17, 20:40 UTCMay 17, 20:50 UTC10m
2026-05-17 VAR527 GYR → GYR May 17, 18:10 UTCMay 17, 19:05 UTC55m
2026-05-17 VAR527 - May 17, 15:35 UTCMay 17, 16:30 UTC55m
2026-05-17 VAR527 - May 17, 13:25 UTCMay 17, 14:10 UTC45m
2026-05-16 VAR527 - May 16, 23:40 UTCMay 17, 00:00 UTC20m
2026-05-16 VAR527 - May 16, 22:45 UTCMay 16, 22:55 UTC10m
2026-05-14 VAR527 - May 14, 18:40 UTCMay 14, 20:10 UTC1h 30m
2026-05-14 VAR527 GYR → BXK May 14, 16:35 UTCMay 14, 18:00 UTC1h 25m
2026-05-14 VAR527 - May 14, 13:35 UTCMay 14, 15:40 UTC2h 5m
2026-05-14 VAR527 GYR → GYR May 14, 01:00 UTCMay 14, 01:05 UTC5m
2026-05-13 VAR527 GYR → GYR May 13, 21:00 UTCMay 13, 21:05 UTC5m

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 N527AV page for operator, model, and routing details .

Mode-S A6A303 frequently asked

What is Mode-S code A6A303?
A6A303 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N527AV.
Where is Mode-S A6A303 registered?
Mode-S code A6A303 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 A6A303 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6A303, octal 51521403, decimal 10,920,707.
What flights does A6A303 operate?
Mode-S A6A303 has broadcast 1 distinct callsign, including VAR527.