Apparatus

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sensors Mode-S transponder

ADB401

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N982QS · operated by TEXTRON AVIATION INC

Hex
ADB401
Octal
53332001
Decimal
11,383,809
Country
US
Tail
N982QS
Type
C68A
No current signal · last broadcast 13h ago
Flights observed
105
Distinct callsigns
2
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S ADB401.

Country allocation

The ICAO 24-bit address ADB401 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
EJA982 NetJets 86 2026-05-26
N982QS - 19 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N982QS GVA → DUB May 29, 15:10 UTCMay 29, 17:05 UTC1h 56m
2026-05-29 N982QS - May 29, 13:25 UTCMay 29, 14:10 UTC45m
2026-05-29 N982QS BRQ → LIN May 29, 10:55 UTCMay 29, 12:00 UTC1h 5m
2026-05-28 N982QS - May 28, 17:10 UTCMay 28, 18:25 UTC1h 15m
2026-05-28 N982QS - May 28, 14:15 UTCMay 28, 16:25 UTC2h 10m
2026-05-28 N982QS - May 28, 10:10 UTCMay 28, 12:35 UTC2h 25m
2026-05-27 N982QS KEF → FAB May 27, 13:10 UTCMay 27, 15:55 UTC2h 45m
2026-05-26 N982QS - May 26, 16:59 UTCMay 26, 21:55 UTC4h 55m
2026-05-26 EJA982 BOI → TEB May 26, 13:54 UTCMay 26, 14:50 UTC55m
2026-05-15 EJA982 BOI → TEB May 15, 00:55 UTCMay 15, 02:00 UTC1h 5m
2026-05-14 EJA982 BOI → TEB May 14, 22:55 UTCMay 15, 00:15 UTC1h 20m
2026-05-14 EJA982 BOI → TEB May 14, 20:30 UTCMay 14, 21:35 UTC1h 5m
2026-05-14 EJA982 BOI → TEB May 14, 18:40 UTCMay 14, 19:40 UTC1h 0m
2026-05-14 EJA982 BOI → TEB May 14, 11:15 UTCMay 14, 12:50 UTC1h 35m
2026-05-14 EJA982 BOI → TEB May 14, 02:20 UTCMay 14, 03:45 UTC1h 25m
2026-05-13 EJA982 BOI → TEB May 13, 20:50 UTCMay 13, 21:15 UTC25m
2026-05-13 EJA982 BOI → TEB May 13, 16:40 UTCMay 13, 19:40 UTC3h 0m
2026-05-13 EJA982 BOI → TEB May 13, 14:00 UTCMay 13, 15:40 UTC1h 40m
2026-05-09 N982QS - May 9, 15:55 UTCMay 9, 18:05 UTC2h 10m
2026-05-09 N982QS - May 9, 13:40 UTCMay 9, 14:00 UTC20m
2026-05-08 EJA982 BOI → TEB May 8, 21:50 UTCMay 8, 23:10 UTC1h 20m
2026-05-08 EJA982 BOI → TEB May 8, 19:30 UTCMay 8, 21:10 UTC1h 40m
2026-05-08 EJA982 BOI → TEB May 8, 14:35 UTCMay 8, 18:45 UTC4h 10m
2026-05-07 EJA982 BOI → TEB May 7, 23:55 UTCMay 8, 00:34 UTC40m
2026-05-07 EJA982 BOI → TEB May 7, 22:00 UTCMay 7, 23:09 UTC1h 10m
2026-05-07 EJA982 BOI → TEB May 7, 19:50 UTCMay 7, 21:00 UTC1h 10m
2026-05-07 EJA982 BOI → TEB May 7, 18:00 UTCMay 7, 18:35 UTC35m
2026-05-07 EJA982 BOI → TEB May 7, 15:20 UTCMay 7, 16:40 UTC1h 20m
2026-05-06 EJA982 BOI → TEB May 6, 20:40 UTCMay 6, 21:40 UTC1h 0m
2026-05-06 EJA982 BOI → TEB May 6, 17:15 UTCMay 6, 17:25 UTC10m
2026-05-06 EJA982 BOI → TEB May 6, 15:50 UTCMay 6, 16:40 UTC50m
2026-05-06 EJA982 BOI → TEB May 6, 12:05 UTCMay 6, 14:25 UTC2h 20m
2026-05-05 EJA982 BOI → TEB May 5, 21:15 UTCMay 5, 22:35 UTC1h 20m
2026-05-05 EJA982 BOI → TEB May 5, 18:55 UTCMay 5, 19:40 UTC45m
2026-05-05 EJA982 BOI → TEB May 5, 16:35 UTCMay 5, 17:55 UTC1h 20m
2026-05-05 EJA982 BOI → TEB May 5, 14:00 UTCMay 5, 14:50 UTC50m
2026-05-05 EJA982 BOI → TEB May 5, 12:35 UTCMay 5, 13:25 UTC50m
2026-05-04 EJA982 BOI → TEB May 4, 19:40 UTCMay 4, 20:05 UTC25m
2026-05-04 EJA982 BOI → TEB May 4, 16:10 UTCMay 4, 18:35 UTC2h 26m
2026-05-04 EJA982 BOI → TEB May 4, 11:50 UTCMay 4, 14:45 UTC2h 55m
2026-05-03 EJA982 BOI → TEB May 3, 19:45 UTCMay 3, 20:40 UTC55m
2026-05-03 EJA982 BOI → TEB May 3, 18:34 UTCMay 3, 18:55 UTC20m
2026-05-03 EJA982 BOI → TEB May 3, 12:20 UTCMay 3, 13:55 UTC1h 35m
2026-05-02 EJA982 BOI → TEB May 2, 21:40 UTCMay 2, 22:30 UTC50m
2026-05-02 EJA982 BOI → TEB May 2, 18:20 UTCMay 2, 21:05 UTC2h 45m
2026-05-01 EJA982 BOI → TEB May 1, 20:25 UTCMay 2, 01:50 UTC5h 25m
2026-05-01 EJA982 BOI → TEB May 1, 15:05 UTCMay 1, 17:35 UTC2h 30m
2026-04-30 N982QS - Apr 30, 22:00 UTCApr 30, 22:40 UTC40m
2026-04-30 N982QS - Apr 30, 18:50 UTCApr 30, 19:05 UTC15m
2026-04-30 EJA982 BOI → TEB Apr 30, 15:50 UTCApr 30, 16:00 UTC10m

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 N982QS page for operator, model, and routing details .

Mode-S ADB401 frequently asked

What is Mode-S code ADB401?
ADB401 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N982QS.
Where is Mode-S ADB401 registered?
Mode-S code ADB401 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 ADB401 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADB401, octal 53332001, decimal 11,383,809.
What flights does ADB401 operate?
Mode-S ADB401 has broadcast 2 distinct callsigns, including EJA982, N982QS.