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 1h ago
Flights observed
101
Distinct callsigns
2
Country
US
Last broadcast
1h 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 NetJets 94 2026-05-30
N824QS - 7 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EJA824 TEB → BOS May 30, 02:25 UTCMay 30, 03:20 UTC55m
2026-05-29 EJA824 TEB → BOS May 29, 19:15 UTCMay 29, 23:10 UTC3h 55m
2026-05-29 EJA824 TEB → BOS May 29, 16:30 UTCMay 29, 17:10 UTC40m
2026-05-28 N824QS - May 28, 22:05 UTCMay 28, 22:20 UTC15m
2026-05-28 N824QS - May 28, 13:45 UTCMay 28, 19:10 UTC5h 25m
2026-05-27 EJA824 TEB → BOS May 27, 21:25 UTCMay 27, 22:40 UTC1h 15m
2026-05-27 EJA824 TEB → BOS May 27, 17:45 UTCMay 27, 19:10 UTC1h 25m
2026-05-25 N824QS - May 25, 19:25 UTCMay 25, 23:04 UTC3h 40m
2026-05-25 N824QS - May 25, 16:10 UTCMay 25, 17:50 UTC1h 40m
2026-05-24 EJA824 TEB → BOS May 24, 20:20 UTCMay 24, 21:45 UTC1h 25m
2026-05-24 EJA824 TEB → BOS May 24, 16:05 UTCMay 24, 17:20 UTC1h 15m
2026-05-24 EJA824 TEB → BOS May 24, 14:20 UTCMay 24, 15:00 UTC40m
2026-05-23 EJA824 TEB → BOS May 23, 17:25 UTCMay 23, 18:00 UTC35m
2026-05-23 EJA824 TEB → BOS May 23, 15:10 UTCMay 23, 15:25 UTC15m
2026-05-23 EJA824 TEB → BOS May 23, 13:20 UTCMay 23, 13:50 UTC30m
2026-05-22 EJA824 TEB → BOS May 22, 23:25 UTCMay 23, 00:05 UTC40m
2026-05-22 EJA824 TEB → BOS May 22, 19:05 UTCMay 22, 21:10 UTC2h 5m
2026-05-22 EJA824 TEB → BOS May 22, 17:15 UTCMay 22, 18:15 UTC1h 0m
2026-05-21 EJA824 TEB → BOS May 21, 23:25 UTCMay 22, 00:55 UTC1h 30m
2026-05-21 EJA824 TEB → BOS May 21, 20:10 UTCMay 21, 21:50 UTC1h 40m
2026-05-21 EJA824 TEB → BOS May 21, 00:55 UTCMay 21, 04:50 UTC3h 55m
2026-05-20 EJA824 TEB → BOS May 20, 16:20 UTCMay 20, 17:00 UTC40m
2026-05-20 EJA824 TEB → BOS May 20, 14:25 UTCMay 20, 15:20 UTC55m
2026-05-19 EJA824 TEB → BOS May 19, 20:15 UTCMay 20, 00:55 UTC4h 40m
2026-05-18 EJA824 TEB → BOS May 18, 18:05 UTCMay 18, 18:45 UTC39m
2026-05-18 EJA824 TEB → BOS May 18, 13:05 UTCMay 18, 16:55 UTC3h 50m
2026-05-17 EJA824 TEB → BOS May 17, 20:20 UTCMay 17, 23:35 UTC3h 15m
2026-05-17 EJA824 TEB → BOS May 17, 13:10 UTCMay 17, 18:25 UTC5h 15m
2026-05-17 EJA824 TEB → BOS May 17, 00:15 UTCMay 17, 01:15 UTC1h 0m
2026-05-16 EJA824 TEB → BOS May 16, 21:20 UTCMay 16, 22:15 UTC55m
2026-05-16 EJA824 TEB → BOS May 16, 19:10 UTCMay 16, 20:05 UTC55m
2026-05-16 EJA824 TEB → BOS May 16, 15:40 UTCMay 16, 17:40 UTC2h 0m
2026-05-15 EJA824 TEB → BOS May 15, 02:15 UTCMay 15, 02:25 UTC10m
2026-05-15 EJA824 TEB → BOS May 15, 00:50 UTCMay 15, 01:35 UTC45m
2026-05-14 EJA824 TEB → BOS May 14, 19:15 UTCMay 14, 20:05 UTC50m
2026-05-13 EJA824 TEB → BOS May 13, 22:40 UTCMay 14, 01:25 UTC2h 45m
2026-05-13 EJA824 TEB → BOS May 13, 19:25 UTCMay 13, 20:45 UTC1h 20m
2026-05-13 EJA824 TEB → BOS May 13, 18:05 UTCMay 13, 18:30 UTC25m
2026-05-12 EJA824 TEB → BOS May 12, 21:20 UTCMay 13, 02:40 UTC5h 20m
2026-05-12 EJA824 TEB → BOS May 12, 02:55 UTCMay 12, 03:10 UTC15m
2026-05-11 EJA824 TEB → BOS May 11, 21:35 UTCMay 11, 21:55 UTC20m
2026-05-08 EJA824 TEB → BOS May 8, 21:30 UTCMay 8, 22:25 UTC55m
2026-05-08 EJA824 TEB → BOS May 8, 19:45 UTCMay 8, 20:25 UTC40m
2026-05-08 EJA824 TEB → BOS May 8, 15:05 UTCMay 8, 15:40 UTC35m
2026-05-07 EJA824 TEB → BOS May 7, 22:05 UTCMay 7, 22:59 UTC55m
2026-05-07 EJA824 TEB → BOS May 7, 19:10 UTCMay 7, 21:20 UTC2h 10m
2026-05-07 EJA824 TEB → BOS May 7, 16:25 UTCMay 7, 17:15 UTC50m
2026-05-06 EJA824 TEB → BOS May 6, 21:25 UTCMay 6, 21:55 UTC30m
2026-05-02 EJA824 TEB → BOS May 2, 22:20 UTCMay 3, 01:10 UTC2h 50m
2026-05-01 EJA824 TEB → BOS May 1, 16:55 UTCMay 1, 19:30 UTC2h 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 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 1h 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.