Apparatus

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sensors Mode-S transponder

A5F52D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N483QS · operated by ASHMONT CAPITAL LLC, ATLANTIC COAST HELICOPTERS INC, BAD ASH LLC, BG CAPITAL HOLDINGS LLC, BICE LLC, CHECK CAPITAL MANAGEMENT INC

Hex
A5F52D
Octal
51372455
Decimal
10,876,205
Country
US
Tail
N483QS
Type
E55P
No current signal · last broadcast 9h ago
Flights observed
115
Distinct callsigns
2
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A5F52D.

Country allocation

The ICAO 24-bit address A5F52D 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 2 distinct

Callsign Airline Flights Last seen
EJA483 NetJets 109 2026-05-29
N483QS - 6 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA483 RSW → SBN May 29, 19:15 UTCMay 29, 21:15 UTC2h 0m
2026-05-29 EJA483 RSW → SBN May 29, 16:10 UTCMay 29, 17:20 UTC1h 10m
2026-05-29 EJA483 RSW → SBN May 29, 13:50 UTCMay 29, 15:10 UTC1h 20m
2026-05-29 EJA483 RSW → SBN May 29, 00:00 UTCMay 29, 00:20 UTC20m
2026-05-28 N483QS - May 28, 23:10 UTCMay 28, 23:25 UTC15m
2026-05-28 N483QS - May 28, 18:10 UTCMay 28, 18:50 UTC40m
2026-05-28 EJA483 RSW → SBN May 28, 16:20 UTCMay 28, 16:45 UTC25m
2026-05-28 EJA483 RSW → SBN May 28, 02:00 UTCMay 28, 02:55 UTC55m
2026-05-28 EJA483 RSW → SBN May 28, 00:35 UTCMay 28, 00:50 UTC15m
2026-05-27 EJA483 RSW → SBN May 27, 20:35 UTCMay 27, 21:35 UTC1h 0m
2026-05-27 EJA483 RSW → SBN May 27, 16:00 UTCMay 27, 17:05 UTC1h 5m
2026-05-26 EJA483 RSW → SBN May 26, 23:29 UTCMay 27, 00:25 UTC55m
2026-05-26 EJA483 RSW → SBN May 26, 21:49 UTCMay 26, 22:39 UTC50m
2026-05-26 EJA483 RSW → SBN May 26, 18:14 UTCMay 26, 19:10 UTC55m
2026-05-26 EJA483 RSW → SBN May 26, 16:45 UTCMay 26, 17:30 UTC45m
2026-05-26 EJA483 RSW → SBN May 26, 01:44 UTCMay 26, 02:19 UTC35m
2026-05-25 EJA483 RSW → SBN May 25, 23:00 UTCMay 26, 00:19 UTC1h 20m
2026-05-25 EJA483 RSW → SBN May 25, 20:24 UTCMay 25, 22:00 UTC1h 35m
2026-05-25 EJA483 RSW → SBN May 25, 18:55 UTCMay 25, 19:15 UTC20m
2026-05-25 EJA483 RSW → SBN May 25, 16:45 UTCMay 25, 17:50 UTC1h 5m
2026-05-24 EJA483 RSW → SBN May 24, 20:15 UTCMay 24, 21:00 UTC45m
2026-05-22 EJA483 RSW → SBN May 22, 18:45 UTCMay 22, 19:30 UTC45m
2026-05-22 EJA483 RSW → SBN May 22, 01:45 UTCMay 22, 03:10 UTC1h 25m
2026-05-21 EJA483 RSW → SBN May 21, 22:45 UTCMay 22, 00:55 UTC2h 10m
2026-05-21 EJA483 RSW → SBN May 21, 19:45 UTCMay 21, 20:50 UTC1h 5m
2026-05-21 EJA483 RSW → SBN May 21, 17:40 UTCMay 21, 18:40 UTC1h 0m
2026-05-20 EJA483 RSW → SBN May 20, 18:10 UTCMay 20, 18:55 UTC45m
2026-05-20 EJA483 RSW → SBN May 20, 16:40 UTCMay 20, 17:00 UTC20m
2026-05-20 EJA483 RSW → SBN May 20, 13:05 UTCMay 20, 15:30 UTC2h 25m
2026-05-19 EJA483 RSW → SBN May 19, 18:15 UTCMay 19, 20:40 UTC2h 25m
2026-05-18 EJA483 RSW → SBN May 18, 22:55 UTCMay 19, 03:45 UTC4h 50m
2026-05-18 EJA483 RSW → SBN May 18, 20:10 UTCMay 18, 22:25 UTC2h 15m
2026-05-18 EJA483 RSW → SBN May 18, 17:10 UTCMay 18, 18:35 UTC1h 24m
2026-05-17 EJA483 RSW → SBN May 17, 22:50 UTCMay 18, 01:05 UTC2h 15m
2026-05-17 N483QS - May 17, 18:45 UTCMay 17, 19:50 UTC1h 5m
2026-05-17 N483QS - May 17, 13:31 UTCMay 17, 14:15 UTC45m
2026-05-17 EJA483 RSW → SBN May 17, 04:15 UTCMay 17, 04:45 UTC30m
2026-05-16 EJA483 RSW → SBN May 16, 23:10 UTCMay 16, 23:40 UTC30m
2026-05-15 EJA483 RSW → SBN May 15, 22:30 UTCMay 16, 01:00 UTC2h 30m
2026-05-15 EJA483 RSW → SBN May 15, 14:20 UTCMay 15, 16:30 UTC2h 9m
2026-05-14 EJA483 RSW → SBN May 14, 23:10 UTCMay 14, 23:55 UTC45m
2026-05-14 EJA483 RSW → SBN May 14, 20:15 UTCMay 14, 22:35 UTC2h 20m
2026-05-14 EJA483 RSW → SBN May 14, 18:10 UTCMay 14, 18:30 UTC20m
2026-05-14 EJA483 RSW → SBN May 14, 16:10 UTCMay 14, 17:15 UTC1h 5m
2026-05-14 EJA483 RSW → SBN May 14, 13:50 UTCMay 14, 14:40 UTC50m
2026-05-13 EJA483 RSW → SBN May 13, 22:45 UTCMay 14, 00:05 UTC1h 20m
2026-05-13 EJA483 RSW → SBN May 13, 21:10 UTCMay 13, 22:10 UTC1h 0m
2026-05-13 N483QS - May 13, 18:10 UTCMay 13, 20:10 UTC2h 0m
2026-05-13 N483QS - May 13, 15:25 UTCMay 13, 16:00 UTC35m
2026-05-13 EJA483 RSW → SBN May 13, 13:20 UTCMay 13, 14:05 UTC45m

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 N483QS page for operator, model, and routing details .

Mode-S A5F52D frequently asked

What is Mode-S code A5F52D?
A5F52D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N483QS.
Where is Mode-S A5F52D registered?
Mode-S code A5F52D 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 A5F52D broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5F52D, octal 51372455, decimal 10,876,205.
What flights does A5F52D operate?
Mode-S A5F52D has broadcast 2 distinct callsigns, including EJA483, N483QS.