Apparatus

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sensors Mode-S transponder

A52A3C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N43171 · PIPER PA-28-140/150/160/180 · operated by FLIGHT LEASING CORP

Hex
A52A3C
Octal
51225074
Decimal
10,824,252
Country
US
Tail
N43171
Type
P28A
Broadcasting now · callsign 43171 · 8,300 ft
Flights observed
346
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 06:05 UTC

Current position

A52A3C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A52A3C 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
43171 - 346 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 43171 - Jul 26, 02:45 UTCJul 26, 06:05 UTC3h 20m
2026-07-25 43171 - Jul 25, 21:40 UTCJul 26, 00:55 UTC3h 15m
2026-07-25 43171 - Jul 25, 18:45 UTCJul 25, 20:40 UTC1h 55m
2026-07-25 43171 - Jul 25, 16:30 UTCJul 25, 17:30 UTC1h 0m
2026-07-25 43171 - Jul 25, 12:20 UTCJul 25, 15:30 UTC3h 10m
2026-07-24 43171 - Jul 24, 23:50 UTCJul 25, 00:20 UTC30m
2026-07-23 43171 - Jul 23, 20:45 UTCJul 23, 21:50 UTC1h 5m
2026-07-23 43171 - Jul 23, 18:00 UTCJul 23, 20:10 UTC2h 10m
2026-07-23 43171 - Jul 23, 14:10 UTCJul 23, 16:45 UTC2h 35m
2026-07-23 43171 - Jul 23, 10:30 UTCJul 23, 13:25 UTC2h 55m
2026-07-22 43171 - Jul 22, 20:40 UTCJul 23, 00:15 UTC3h 35m
2026-07-22 43171 - Jul 22, 16:05 UTCJul 22, 19:20 UTC3h 15m
2026-07-21 43171 - Jul 21, 16:45 UTCJul 21, 18:35 UTC1h 50m
2026-07-21 43171 - Jul 21, 13:15 UTCJul 21, 16:05 UTC2h 50m
2026-07-21 43171 - Jul 21, 10:55 UTCJul 21, 12:35 UTC1h 40m
2026-07-20 43171 - Jul 20, 16:40 UTCJul 20, 18:15 UTC1h 35m
2026-07-20 43171 FXE → APF Jul 20, 12:00 UTCJul 20, 15:25 UTC3h 25m
2026-07-19 43171 - Jul 19, 15:05 UTCJul 19, 18:25 UTC3h 20m
2026-07-19 43171 - Jul 19, 10:55 UTCJul 19, 13:15 UTC2h 20m
2026-07-18 43171 - Jul 18, 16:40 UTCJul 18, 20:25 UTC3h 45m
2026-07-18 43171 - Jul 18, 14:00 UTCJul 18, 16:00 UTC2h 0m
2026-07-17 43171 - Jul 17, 16:24 UTCJul 17, 18:10 UTC1h 45m
2026-07-17 43171 FXE → FXE Jul 17, 11:00 UTCJul 17, 14:00 UTC3h 0m
2026-07-15 43171 - Jul 15, 16:35 UTCJul 15, 18:15 UTC1h 40m
2026-07-15 43171 - Jul 15, 12:40 UTCJul 15, 14:55 UTC2h 15m
2026-07-15 43171 - Jul 15, 00:45 UTCJul 15, 03:10 UTC2h 25m
2026-07-14 43171 - Jul 14, 18:15 UTCJul 14, 22:40 UTC4h 25m
2026-07-13 43171 - Jul 13, 16:10 UTCJul 13, 19:40 UTC3h 30m
2026-07-13 43171 - Jul 13, 11:30 UTCJul 13, 14:05 UTC2h 35m
2026-07-12 43171 - Jul 12, 16:55 UTCJul 12, 19:50 UTC2h 55m
2026-07-12 43171 - Jul 12, 14:40 UTCJul 12, 15:30 UTC50m
2026-07-12 43171 - Jul 12, 10:55 UTCJul 12, 13:35 UTC2h 40m
2026-07-11 43171 - Jul 11, 15:40 UTCJul 11, 18:45 UTC3h 5m
2026-07-11 43171 - Jul 11, 12:50 UTCJul 11, 13:45 UTC55m
2026-07-10 43171 - Jul 10, 18:10 UTCJul 10, 18:25 UTC15m
2026-07-10 43171 - Jul 10, 14:00 UTCJul 10, 17:15 UTC3h 15m
2026-07-10 43171 - Jul 10, 11:05 UTCJul 10, 13:00 UTC1h 55m
2026-07-10 43171 - Jul 10, 01:55 UTCJul 10, 05:15 UTC3h 20m
2026-07-09 43171 - Jul 9, 23:40 UTCJul 10, 00:10 UTC30m
2026-07-09 43171 - Jul 9, 21:35 UTCJul 9, 22:00 UTC25m
2026-07-09 43171 - Jul 9, 18:40 UTCJul 9, 21:00 UTC2h 20m
2026-07-09 43171 FXE → FXE Jul 9, 13:10 UTCJul 9, 13:45 UTC35m
2026-07-08 43171 - Jul 8, 21:40 UTCJul 9, 01:40 UTC4h 0m
2026-07-08 43171 FXE → APF Jul 8, 18:25 UTCJul 8, 20:40 UTC2h 15m
2026-07-08 43171 FXE → FXE Jul 8, 15:30 UTCJul 8, 15:55 UTC25m
2026-07-07 43171 - Jul 7, 15:30 UTCJul 7, 18:50 UTC3h 20m
2026-07-07 43171 - Jul 7, 10:55 UTCJul 7, 14:15 UTC3h 20m
2026-07-06 43171 - Jul 6, 16:10 UTCJul 6, 17:45 UTC1h 35m
2026-07-06 43171 - Jul 6, 10:50 UTCJul 6, 14:05 UTC3h 15m
2026-07-04 43171 - Jul 4, 04:20 UTCJul 4, 07:15 UTC2h 55m

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 N43171 page for operator, model, and routing details .

Mode-S A52A3C frequently asked

What is Mode-S code A52A3C?
A52A3C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N43171.
Where is Mode-S A52A3C registered?
Mode-S code A52A3C 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 A52A3C broadcasting right now?
Yes. Mode-S A52A3C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A52A3C, octal 51225074, decimal 10,824,252.
What flights does A52A3C operate?
Mode-S A52A3C has broadcast 1 distinct callsign, including 43171.