Apparatus

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sensors Mode-S transponder

A68902

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N520AV · operated by WESTWIND SCHOOL OF AERONAUTICS PHOENIX LLC DBA, UNITED AVIATE ACADEMY

Hex
A68902
Octal
51504402
Decimal
10,914,050
Country
US
Tail
N520AV
Type
SR20
No current signal · last broadcast 4d ago
Flights observed
190
Distinct callsigns
1
Country
US
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S A68902.

Country allocation

The ICAO 24-bit address A68902 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
VAR520 - 190 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 VAR520 GYR → VGT Jul 10, 13:30 UTCJul 10, 15:25 UTC1h 55m
2026-07-10 VAR520 - Jul 10, 04:30 UTCJul 10, 04:55 UTC25m
2026-07-10 VAR520 GYR → GYR Jul 10, 04:10 UTCJul 10, 04:15 UTC5m
2026-07-09 VAR520 GYR → GYR Jul 9, 22:40 UTCJul 10, 01:05 UTC2h 25m
2026-07-09 VAR520 - Jul 9, 16:05 UTCJul 9, 16:50 UTC45m
2026-07-09 VAR520 - Jul 9, 14:05 UTCJul 9, 14:50 UTC45m
2026-07-08 VAR520 GYR → GYR Jul 8, 22:15 UTCJul 9, 00:00 UTC1h 45m
2026-07-07 VAR520 GYR → GYR Jul 7, 22:35 UTCJul 8, 00:30 UTC1h 55m
2026-07-07 VAR520 GYR → GYR Jul 7, 19:30 UTCJul 7, 21:15 UTC1h 45m
2026-07-07 VAR520 GYR → GYR Jul 7, 16:50 UTCJul 7, 18:10 UTC1h 20m
2026-07-06 VAR520 GYR → GYR Jul 6, 23:55 UTCJul 7, 01:40 UTC1h 45m
2026-07-06 VAR520 GYR → GYR Jul 6, 16:30 UTCJul 6, 17:55 UTC1h 25m
2026-07-05 VAR520 GYR → GYR Jul 5, 21:40 UTCJul 5, 21:45 UTC5m
2026-07-05 VAR520 GYR → GYR Jul 5, 18:05 UTCJul 5, 19:15 UTC1h 10m
2026-07-05 VAR520 GYR → GYR Jul 5, 14:40 UTCJul 5, 16:25 UTC1h 45m
2026-07-05 VAR520 - Jul 5, 03:25 UTCJul 5, 04:50 UTC1h 25m
2026-07-04 VAR520 GYR → TUS Jul 4, 23:40 UTCJul 5, 01:35 UTC1h 55m
2026-07-04 VAR520 - Jul 4, 22:30 UTCJul 4, 22:45 UTC15m
2026-07-04 VAR520 - Jul 4, 20:25 UTCJul 4, 22:25 UTC2h 0m
2026-07-04 VAR520 GYR → CGZ Jul 4, 17:00 UTCJul 4, 19:15 UTC2h 15m
2026-07-04 VAR520 - Jul 4, 15:25 UTCJul 4, 15:40 UTC15m
2026-07-04 VAR520 - Jul 4, 14:10 UTCJul 4, 15:20 UTC1h 10m
2026-07-04 VAR520 AZA → GYR Jul 4, 02:50 UTCJul 4, 04:30 UTC1h 40m
2026-07-04 VAR520 GYR → AZA Jul 4, 00:20 UTCJul 4, 01:50 UTC1h 30m
2026-07-03 VAR520 GYR → GYR Jul 3, 20:40 UTCJul 3, 21:45 UTC1h 5m
2026-07-03 VAR520 - Jul 3, 19:00 UTCJul 3, 19:10 UTC10m
2026-07-03 VAR520 GYR → BXK Jul 3, 17:40 UTCJul 3, 18:55 UTC1h 15m
2026-07-03 VAR520 - Jul 3, 16:10 UTCJul 3, 16:25 UTC15m
2026-07-03 VAR520 - Jul 3, 15:00 UTCJul 3, 15:45 UTC45m
2026-07-01 VAR520 - Jul 1, 21:20 UTCJul 1, 22:30 UTC1h 10m
2026-07-01 VAR520 GYR → GYR Jul 1, 18:30 UTCJul 1, 19:55 UTC1h 25m
2026-07-01 VAR520 GYR → GYR Jul 1, 03:50 UTCJul 1, 05:45 UTC1h 55m
2026-07-01 VAR520 GYR → GYR Jul 1, 00:40 UTCJul 1, 02:10 UTC1h 30m
2026-06-30 VAR520 GYR → GYR Jun 30, 21:20 UTCJun 30, 23:00 UTC1h 40m
2026-06-30 VAR520 GYR → GYR Jun 30, 18:20 UTCJun 30, 20:05 UTC1h 45m
2026-06-30 VAR520 GYR → GYR Jun 30, 15:15 UTCJun 30, 16:50 UTC1h 35m
2026-06-29 VAR520 VGT → GYR Jun 29, 17:19 UTCJun 29, 19:29 UTC2h 10m
2026-06-20 VAR520 GYR → VGT Jun 20, 13:49 UTCJun 20, 16:00 UTC2h 10m
2026-06-20 VAR520 - Jun 20, 00:34 UTCJun 20, 02:09 UTC1h 35m
2026-06-19 VAR520 - Jun 19, 22:04 UTCJun 19, 22:39 UTC35m
2026-06-19 VAR520 - Jun 19, 21:04 UTCJun 19, 21:59 UTC55m
2026-06-19 VAR520 GYR → GYR Jun 19, 17:24 UTCJun 19, 19:04 UTC1h 40m
2026-06-19 VAR520 GYR → GYR Jun 19, 00:00 UTCJun 19, 00:14 UTC14m
2026-06-18 VAR520 GYR → GYR Jun 18, 23:50 UTCJun 18, 23:55 UTC5m
2026-06-18 VAR520 GYR → GYR Jun 18, 17:05 UTCJun 18, 18:20 UTC1h 15m
2026-06-18 VAR520 - Jun 18, 15:00 UTCJun 18, 16:10 UTC1h 10m
2026-06-17 VAR520 GYR → GYR Jun 17, 20:15 UTCJun 17, 22:15 UTC2h 0m
2026-06-17 VAR520 GYR → GYR Jun 17, 15:40 UTCJun 17, 15:46 UTC5m
2026-06-16 VAR520 - Jun 16, 22:25 UTCJun 16, 22:30 UTC5m
2026-06-16 VAR520 - Jun 16, 22:10 UTCJun 16, 22:15 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 N520AV page for operator, model, and routing details .

Mode-S A68902 frequently asked

What is Mode-S code A68902?
A68902 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N520AV.
Where is Mode-S A68902 registered?
Mode-S code A68902 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 A68902 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A68902, octal 51504402, decimal 10,914,050.
What flights does A68902 operate?
Mode-S A68902 has broadcast 1 distinct callsign, including VAR520.