Apparatus

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sensors Mode-S transponder

AB4126

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N824QS · CESSNA 700 Citation Longitude · operated by NETJETS SALES INC, ADL AVIAITON LLC, DAVIS DAVID, KAVNER JULIE, GJS TRAVEL MANAGEMENT LLC, HUDSON CAPITAL GROUP INC

Hex
AB4126
Octal
52640446
Decimal
11,223,334
Country
US
Tail
N824QS
Type
C700
No current signal · last broadcast 4h ago
Flights observed
159
Distinct callsigns
2
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AB4126.

Country allocation

The ICAO 24-bit address AB4126 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
EJA824 - 152 2026-07-14
N824QS - 7 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EJA824 - Jul 14, 00:55 UTCJul 14, 02:30 UTC1h 35m
2026-07-13 EJA824 - Jul 13, 22:25 UTCJul 13, 23:05 UTC40m
2026-07-13 EJA824 - Jul 13, 20:40 UTCJul 13, 21:45 UTC1h 5m
2026-07-13 EJA824 - Jul 13, 19:10 UTCJul 13, 19:40 UTC30m
2026-07-13 EJA824 - Jul 13, 16:55 UTCJul 13, 18:25 UTC1h 30m
2026-07-13 EJA824 - Jul 13, 00:25 UTCJul 13, 01:25 UTC1h 0m
2026-07-12 EJA824 BED → JFK Jul 12, 21:30 UTCJul 12, 22:15 UTC45m
2026-07-12 EJA824 - Jul 12, 16:15 UTCJul 12, 20:10 UTC3h 55m
2026-07-11 EJA824 - Jul 11, 20:35 UTCJul 11, 20:45 UTC10m
2026-07-11 EJA824 - Jul 11, 15:00 UTCJul 11, 19:00 UTC4h 0m
2026-07-11 EJA824 - Jul 11, 12:50 UTCJul 11, 13:20 UTC30m
2026-07-11 EJA824 - Jul 11, 11:10 UTCJul 11, 11:50 UTC40m
2026-07-10 EJA824 - Jul 10, 19:40 UTCJul 10, 20:05 UTC25m
2026-07-10 EJA824 - Jul 10, 17:50 UTCJul 10, 18:20 UTC30m
2026-07-10 EJA824 - Jul 10, 13:35 UTCJul 10, 16:40 UTC3h 5m
2026-07-09 EJA824 - Jul 9, 22:55 UTCJul 9, 23:35 UTC40m
2026-07-09 EJA824 - Jul 9, 20:15 UTCJul 9, 21:55 UTC1h 40m
2026-07-09 EJA824 - Jul 9, 15:45 UTCJul 9, 16:50 UTC1h 5m
2026-07-09 EJA824 - Jul 9, 13:20 UTCJul 9, 13:35 UTC15m
2026-07-07 EJA824 - Jul 7, 22:15 UTCJul 7, 22:40 UTC25m
2026-07-07 EJA824 - Jul 7, 17:20 UTCJul 7, 21:00 UTC3h 40m
2026-07-07 EJA824 SUA → FXE Jul 7, 15:15 UTCJul 7, 15:35 UTC20m
2026-07-06 EJA824 - Jul 6, 20:45 UTCJul 7, 01:20 UTC4h 35m
2026-07-06 EJA824 - Jul 6, 18:30 UTCJul 6, 19:45 UTC1h 15m
2026-07-06 EJA824 - Jul 6, 16:45 UTCJul 6, 17:20 UTC35m
2026-07-05 EJA824 - Jul 5, 21:40 UTCJul 5, 22:55 UTC1h 15m
2026-07-05 EJA824 CLD → SCF Jul 5, 20:00 UTCJul 5, 20:45 UTC45m
2026-07-05 EJA824 LAS → CLD Jul 5, 18:00 UTCJul 5, 18:40 UTC40m
2026-07-04 EJA824 - Jul 4, 17:15 UTCJul 4, 18:05 UTC50m
2026-07-04 EJA824 - Jul 4, 15:00 UTCJul 4, 15:45 UTC45m
2026-07-01 EJA824 - Jul 1, 16:10 UTCJul 1, 17:05 UTC55m
2026-06-25 EJA824 AZA → TUS Jun 25, 18:50 UTCJun 25, 19:20 UTC30m
2026-06-25 EJA824 ROA → AZA Jun 25, 14:04 UTCJun 25, 18:00 UTC3h 55m
2026-06-25 EJA824 - Jun 25, 12:35 UTCJun 25, 13:00 UTC25m
2026-06-15 EJA824 - Jun 15, 16:30 UTCJun 15, 17:54 UTC1h 25m
2026-06-15 EJA824 - Jun 15, 14:10 UTCJun 15, 15:15 UTC1h 5m
2026-06-15 EJA824 BUF → YHM Jun 15, 01:35 UTCJun 15, 01:55 UTC20m
2026-06-14 EJA824 SJC → BUF Jun 14, 16:10 UTCJun 14, 20:20 UTC4h 10m
2026-06-14 EJA824 - Jun 14, 00:00 UTCJun 14, 00:55 UTC55m
2026-06-13 EJA824 - Jun 13, 21:35 UTCJun 13, 22:35 UTC1h 0m
2026-06-13 EJA824 - Jun 13, 04:20 UTCJun 13, 05:10 UTC50m
2026-06-13 EJA824 - Jun 13, 01:05 UTCJun 13, 02:05 UTC1h 0m
2026-06-12 EJA824 - Jun 12, 20:50 UTCJun 12, 21:10 UTC20m
2026-06-12 EJA824 SBA → CCR Jun 12, 18:30 UTCJun 12, 19:15 UTC45m
2026-06-12 EJA824 TEB → BOS Jun 12, 04:55 UTCJun 12, 05:40 UTC45m
2026-06-12 EJA824 TEB → BOS Jun 12, 00:25 UTCJun 12, 01:45 UTC1h 21m
2026-06-11 EJA824 TEB → BOS Jun 11, 03:40 UTCJun 11, 08:00 UTC4h 20m
2026-06-11 EJA824 TEB → BOS Jun 11, 02:00 UTCJun 11, 02:45 UTC45m
2026-06-08 EJA824 TEB → BOS Jun 8, 16:25 UTCJun 8, 18:10 UTC1h 45m
2026-06-08 EJA824 TEB → BOS Jun 8, 11:45 UTCJun 8, 12:50 UTC1h 5m

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 N824QS page for operator, model, and routing details .

Mode-S AB4126 frequently asked

What is Mode-S code AB4126?
AB4126 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N824QS.
Where is Mode-S AB4126 registered?
Mode-S code AB4126 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 AB4126 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB4126, octal 52640446, decimal 11,223,334.
What flights does AB4126 operate?
Mode-S AB4126 has broadcast 2 distinct callsigns, including EJA824, N824QS.