sensors Mode-S transponder

A52B8B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N432LE · ROBINSON R-22 Mariner · operated by LEADING EDGE FLIGHT ACADEMY LLC

Hex
A52B8B
Octal
51225613
Decimal
10,824,587
Country
US
Tail
N432LE
Type
R22
No current signal · last broadcast 23h ago
Flights observed
9
Distinct callsigns
1
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A52B8B.

Country allocation

The ICAO 24-bit address A52B8B 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
N432LE - 9 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 N432LE - Apr 13, 23:05 UTCApr 13, 23:45 UTC40m
2026-04-13 N432LE - Apr 13, 21:30 UTCApr 13, 22:10 UTC40m
2026-04-13 N432LE - Apr 13, 19:55 UTCApr 13, 20:20 UTC25m
2026-04-13 N432LE - Apr 13, 19:05 UTCApr 13, 20:10 UTC1h 5m
2026-04-13 N432LE - Apr 13, 15:50 UTCApr 13, 16:20 UTC30m
2026-04-13 N432LE - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 N432LE - Apr 13, 13:40 UTCApr 13, 14:10 UTC30m
2026-04-12 N432LE - Apr 12, 19:30 UTCApr 12, 20:15 UTC45m
2026-04-12 N432LE - Apr 12, 17:25 UTCApr 12, 18:25 UTC1h 0m

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 N432LE page for operator, model, and routing details .

Mode-S A52B8B frequently asked

What is Mode-S code A52B8B?
A52B8B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N432LE.
Where is Mode-S A52B8B registered?
Mode-S code A52B8B 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 A52B8B broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A52B8B, octal 51225613, decimal 10,824,587.
What flights does A52B8B operate?
Mode-S A52B8B has broadcast 1 distinct callsign, including N432LE.