Apparatus

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sensors Mode-S transponder

A52FE1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N433SP · CESSNA 172 Skyhawk · operated by ASPIRE AVIATION LLC

Hex
A52FE1
Octal
51227741
Decimal
10,825,697
Country
US
Tail
N433SP
Type
C172
No current signal · last broadcast 3h ago
Flights observed
126
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A52FE1.

Country allocation

The ICAO 24-bit address A52FE1 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
N433SP - 126 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N433SP - Jul 14, 22:15 UTCJul 15, 00:10 UTC1h 54m
2026-07-14 N433SP - Jul 14, 11:55 UTCJul 14, 12:25 UTC30m
2026-07-13 N433SP - Jul 13, 23:45 UTCJul 14, 00:05 UTC20m
2026-07-13 N433SP - Jul 13, 22:40 UTCJul 13, 22:55 UTC15m
2026-07-13 N433SP - Jul 13, 21:25 UTCJul 13, 21:55 UTC30m
2026-07-13 N433SP - Jul 13, 19:15 UTCJul 13, 20:15 UTC1h 0m
2026-07-13 N433SP - Jul 13, 16:15 UTCJul 13, 17:40 UTC1h 25m
2026-07-13 N433SP - Jul 13, 15:10 UTCJul 13, 16:10 UTC1h 0m
2026-07-13 N433SP - Jul 13, 12:45 UTCJul 13, 13:45 UTC1h 0m
2026-07-10 N433SP FRG → FRG Jul 10, 20:10 UTCJul 10, 21:05 UTC55m
2026-07-10 N433SP FRG → FRG Jul 10, 11:45 UTCJul 10, 12:40 UTC55m
2026-07-10 N433SP - Jul 10, 02:20 UTCJul 10, 03:55 UTC1h 35m
2026-07-09 N433SP - Jul 9, 23:20 UTCJul 10, 00:25 UTC1h 5m
2026-07-09 N433SP FRG → FRG Jul 9, 16:50 UTCJul 9, 18:05 UTC1h 15m
2026-07-09 N433SP - Jul 9, 14:40 UTCJul 9, 15:35 UTC55m
2026-07-08 N433SP - Jul 8, 23:35 UTCJul 9, 00:05 UTC30m
2026-07-08 N433SP - Jul 8, 22:10 UTCJul 8, 22:45 UTC35m
2026-07-08 N433SP - Jul 8, 18:50 UTCJul 8, 20:00 UTC1h 10m
2026-07-08 N433SP FRG → FRG Jul 8, 15:25 UTCJul 8, 15:45 UTC20m
2026-07-08 N433SP - Jul 8, 12:35 UTCJul 8, 13:35 UTC1h 0m
2026-07-02 N433SP FRG → FRG Jul 2, 22:00 UTCJul 2, 22:50 UTC50m
2026-07-01 N433SP - Jul 1, 16:25 UTCJul 1, 17:25 UTC1h 0m
2026-07-01 N433SP - Jul 1, 01:45 UTCJul 1, 02:30 UTC45m
2026-06-24 N433SP FRG → FRG Jun 24, 02:34 UTCJun 24, 03:10 UTC35m
2026-06-22 N433SP FRG → FRG Jun 22, 14:29 UTCJun 22, 14:49 UTC20m
2026-06-21 N433SP - Jun 21, 20:14 UTCJun 21, 20:50 UTC35m
2026-06-20 N433SP HFD → FRG Jun 20, 16:19 UTCJun 20, 17:19 UTC1h 0m
2026-06-20 N433SP - Jun 20, 14:59 UTCJun 20, 15:44 UTC45m
2026-06-20 N433SP FRG → FRG Jun 20, 02:40 UTCJun 20, 02:59 UTC20m
2026-06-19 N433SP FRG → FRG Jun 19, 23:25 UTCJun 19, 23:54 UTC30m
2026-06-15 N433SP FRG → FRG Jun 15, 14:20 UTCJun 15, 14:50 UTC30m
2026-06-14 N433SP FRG → FRG Jun 14, 21:45 UTCJun 14, 21:55 UTC10m
2026-06-08 N433SP FRG → FRG Jun 8, 18:45 UTCJun 8, 19:25 UTC40m
2026-06-07 N433SP FRG → FRG Jun 7, 20:05 UTCJun 7, 21:00 UTC55m
2026-06-07 N433SP FRG → FRG Jun 7, 16:35 UTCJun 7, 17:00 UTC25m
2026-06-04 N433SP - Jun 4, 21:05 UTCJun 4, 21:40 UTC35m
2026-06-04 N433SP - Jun 4, 19:25 UTCJun 4, 20:25 UTC1h 0m
2026-06-04 N433SP - Jun 4, 15:45 UTCJun 4, 16:25 UTC40m
2026-06-04 N433SP - Jun 4, 14:30 UTCJun 4, 15:10 UTC40m
2026-06-04 N433SP - Jun 4, 00:00 UTCJun 4, 00:40 UTC40m
2026-06-03 N433SP - Jun 3, 22:45 UTCJun 3, 23:05 UTC20m
2026-06-03 N433SP - Jun 3, 20:40 UTCJun 3, 21:25 UTC45m
2026-06-03 N433SP FRG → FRG Jun 3, 18:15 UTCJun 3, 19:00 UTC45m
2026-06-02 N433SP FRG → FRG Jun 2, 21:55 UTCJun 2, 23:30 UTC1h 35m
2026-06-02 N433SP - Jun 2, 16:10 UTCJun 2, 17:20 UTC1h 10m
2026-06-01 N433SP - Jun 1, 23:35 UTCJun 2, 00:10 UTC35m
2026-05-29 N433SP - May 29, 23:20 UTCMay 30, 00:10 UTC50m
2026-05-29 N433SP FRG → FRG May 29, 20:45 UTCMay 29, 21:55 UTC1h 10m
2026-05-28 N433SP - May 28, 01:05 UTCMay 28, 01:20 UTC15m
2026-05-27 N433SP - May 27, 21:55 UTCMay 27, 23:30 UTC1h 35m

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 N433SP page for operator, model, and routing details .

Mode-S A52FE1 frequently asked

What is Mode-S code A52FE1?
A52FE1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N433SP.
Where is Mode-S A52FE1 registered?
Mode-S code A52FE1 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 A52FE1 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A52FE1, octal 51227741, decimal 10,825,697.
What flights does A52FE1 operate?
Mode-S A52FE1 has broadcast 1 distinct callsign, including N433SP.