Apparatus

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sensors Mode-S transponder

A4D434

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N410AV · operated by WESTWIND SCHOOL OF AERONAUTICS PHOENIX DBA, UNITED AVIATE ACADEMY

Hex
A4D434
Octal
51152064
Decimal
10,802,228
Country
US
Tail
N410AV
Type
SR20
No current signal · last broadcast 13h ago
Flights observed
289
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A4D434.

Country allocation

The ICAO 24-bit address A4D434 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
VAR410 - 289 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 VAR410 GYR → GYR Jul 17, 19:20 UTCJul 17, 21:00 UTC1h 40m
2026-07-17 VAR410 GYR → GYR Jul 17, 00:14 UTCJul 17, 02:05 UTC1h 50m
2026-07-16 VAR410 GYR → GYR Jul 16, 21:25 UTCJul 16, 22:59 UTC1h 35m
2026-07-16 VAR410 GYR → GYR Jul 16, 18:34 UTCJul 16, 19:50 UTC1h 15m
2026-07-16 VAR410 - Jul 16, 16:15 UTCJul 16, 17:14 UTC1h 0m
2026-07-16 VAR410 - Jul 16, 14:00 UTCJul 16, 15:10 UTC1h 10m
2026-07-15 VAR410 GYR → GYR Jul 15, 19:10 UTCJul 15, 21:25 UTC2h 15m
2026-07-15 VAR410 GYR → GYR Jul 15, 15:55 UTCJul 15, 18:05 UTC2h 10m
2026-07-15 VAR410 GYR → GYR Jul 15, 13:45 UTCJul 15, 14:50 UTC1h 5m
2026-07-15 VAR410 GYR → GYR Jul 15, 00:35 UTCJul 15, 01:45 UTC1h 10m
2026-07-14 VAR410 GYR → GYR Jul 14, 20:00 UTCJul 14, 22:30 UTC2h 30m
2026-07-14 VAR410 - Jul 14, 16:30 UTCJul 14, 17:25 UTC55m
2026-07-14 VAR410 GYR → GYR Jul 14, 14:45 UTCJul 14, 15:35 UTC50m
2026-07-13 VAR410 GYR → GYR Jul 13, 18:30 UTCJul 13, 19:55 UTC1h 25m
2026-07-13 VAR410 GYR → GYR Jul 13, 15:35 UTCJul 13, 17:15 UTC1h 40m
2026-07-12 VAR410 GYR → GYR Jul 12, 14:30 UTCJul 12, 15:25 UTC55m
2026-07-12 VAR410 - Jul 12, 04:40 UTCJul 12, 05:20 UTC40m
2026-07-12 VAR410 GYR → SCF Jul 12, 04:10 UTCJul 12, 04:30 UTC20m
2026-07-10 VAR410 GYR → GYR Jul 10, 23:30 UTCJul 11, 00:55 UTC1h 25m
2026-07-10 VAR410 GYR → GYR Jul 10, 20:00 UTCJul 10, 22:20 UTC2h 20m
2026-07-10 VAR410 - Jul 10, 02:05 UTCJul 10, 02:50 UTC45m
2026-07-09 VAR410 GYR → GYR Jul 9, 22:00 UTCJul 9, 23:00 UTC1h 0m
2026-07-09 VAR410 GYR → GYR Jul 9, 18:25 UTCJul 9, 19:50 UTC1h 25m
2026-07-09 VAR410 GYR → GYR Jul 9, 16:10 UTCJul 9, 17:10 UTC1h 0m
2026-07-08 VAR410 GYR → GYR Jul 8, 23:50 UTCJul 9, 01:30 UTC1h 40m
2026-07-08 VAR410 - Jul 8, 20:15 UTCJul 8, 21:35 UTC1h 20m
2026-07-08 VAR410 - Jul 8, 19:20 UTCJul 8, 20:10 UTC50m
2026-07-08 VAR410 GYR → GYR Jul 8, 15:35 UTCJul 8, 17:45 UTC2h 10m
2026-07-07 VAR410 - Jul 7, 19:40 UTCJul 7, 21:00 UTC1h 20m
2026-07-01 VAR410 - Jul 1, 14:00 UTCJul 1, 16:25 UTC2h 25m
2026-07-01 VAR410 - Jul 1, 04:10 UTCJul 1, 04:50 UTC40m
2026-07-01 VAR410 - Jul 1, 02:45 UTCJul 1, 03:35 UTC50m
2026-07-01 VAR410 - Jul 1, 00:25 UTCJul 1, 00:35 UTC10m
2026-06-30 VAR410 - Jun 30, 22:35 UTCJun 30, 23:25 UTC50m
2026-06-29 VAR410 - Jun 29, 20:59 UTCJun 29, 22:05 UTC1h 5m
2026-06-29 VAR410 - Jun 29, 20:40 UTCJun 29, 20:49 UTC10m
2026-06-29 VAR410 - Jun 29, 19:29 UTCJun 29, 20:09 UTC40m
2026-06-29 VAR410 - Jun 29, 01:20 UTCJun 29, 01:55 UTC35m
2026-06-28 VAR410 - Jun 28, 23:39 UTCJun 29, 00:20 UTC40m
2026-06-28 VAR410 GYR → LGB Jun 28, 19:44 UTCJun 28, 22:24 UTC2h 40m
2026-06-26 VAR410 GYR → GYR Jun 26, 18:44 UTCJun 26, 20:20 UTC1h 35m
2026-06-26 VAR410 - Jun 26, 15:45 UTCJun 26, 17:15 UTC1h 30m
2026-06-26 VAR410 GYR → GYR Jun 26, 15:10 UTCJun 26, 15:15 UTC5m
2026-06-25 VAR410 GYR → GYR Jun 25, 16:55 UTCJun 25, 18:15 UTC1h 20m
2026-06-25 VAR410 GYR → GYR Jun 25, 06:35 UTCJun 25, 06:40 UTC5m
2026-06-25 VAR410 GYR → GYR Jun 25, 05:44 UTCJun 25, 05:50 UTC5m
2026-06-25 VAR410 SBD → GYR Jun 25, 03:40 UTCJun 25, 05:39 UTC2h 0m
2026-06-25 VAR410 GYR → SBD Jun 25, 00:44 UTCJun 25, 02:45 UTC2h 0m
2026-06-23 VAR410 - Jun 23, 23:14 UTCJun 24, 00:05 UTC50m
2026-06-23 VAR410 GYR → DVT Jun 23, 21:24 UTCJun 23, 21:45 UTC20m

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 N410AV page for operator, model, and routing details .

Mode-S A4D434 frequently asked

What is Mode-S code A4D434?
A4D434 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N410AV.
Where is Mode-S A4D434 registered?
Mode-S code A4D434 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 A4D434 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4D434, octal 51152064, decimal 10,802,228.
What flights does A4D434 operate?
Mode-S A4D434 has broadcast 1 distinct callsign, including VAR410.