Apparatus

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sensors Mode-S transponder

ADBB6F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N984QS · operated by TEXTRON AVIATION INC

Hex
ADBB6F
Octal
53335557
Decimal
11,385,711
Country
US
Tail
N984QS
Type
C68A
No current signal · last broadcast 1d ago
Flights observed
163
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ADBB6F.

Country allocation

The ICAO 24-bit address ADBB6F 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
EJA984 - 157 2026-07-12
N984QS - 6 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 EJA984 - Jul 12, 18:50 UTCJul 12, 19:35 UTC45m
2026-07-12 EJA984 LAS → SCF Jul 12, 16:20 UTCJul 12, 17:05 UTC45m
2026-07-10 EJA984 - Jul 10, 20:40 UTCJul 10, 21:30 UTC50m
2026-07-10 EJA984 - Jul 10, 18:15 UTCJul 10, 18:40 UTC25m
2026-07-10 EJA984 - Jul 10, 16:35 UTCJul 10, 16:55 UTC20m
2026-07-10 EJA984 - Jul 10, 00:05 UTCJul 10, 01:00 UTC55m
2026-07-09 EJA984 VNY → SDM Jul 9, 00:15 UTCJul 9, 00:45 UTC30m
2026-07-06 EJA984 - Jul 6, 21:10 UTCJul 6, 23:10 UTC2h 0m
2026-07-06 EJA984 BFI → PDX Jul 6, 19:40 UTCJul 6, 20:15 UTC35m
2026-07-06 EJA984 - Jul 6, 17:05 UTCJul 6, 18:10 UTC1h 5m
2026-07-06 EJA984 - Jul 6, 13:40 UTCJul 6, 15:05 UTC1h 25m
2026-07-05 EJA984 - Jul 5, 20:45 UTCJul 6, 01:10 UTC4h 25m
2026-07-05 EJA984 - Jul 5, 18:50 UTCJul 5, 19:45 UTC55m
2026-07-05 EJA984 - Jul 5, 16:00 UTCJul 5, 17:00 UTC1h 0m
2026-07-05 EJA984 - Jul 5, 14:55 UTCJul 5, 15:05 UTC10m
2026-07-01 EJA984 - Jul 1, 16:20 UTCJul 1, 19:05 UTC2h 45m
2026-06-30 EJA984 - Jun 30, 19:55 UTCJun 30, 20:10 UTC15m
2026-06-29 EJA984 - Jun 29, 14:44 UTCJun 29, 16:00 UTC1h 15m
2026-06-28 EJA984 - Jun 28, 18:29 UTCJun 28, 21:45 UTC3h 15m
2026-06-28 EJA984 - Jun 28, 15:29 UTCJun 28, 17:19 UTC1h 50m
2026-06-25 EJA984 - Jun 25, 12:50 UTCJun 25, 13:59 UTC1h 10m
2026-06-24 EJA984 - Jun 24, 23:54 UTCJun 25, 00:49 UTC55m
2026-06-24 EJA984 - Jun 24, 15:35 UTCJun 24, 17:55 UTC2h 20m
2026-06-24 EJA984 - Jun 24, 10:59 UTCJun 24, 13:24 UTC2h 25m
2026-06-22 EJA984 - Jun 22, 18:49 UTCJun 22, 19:40 UTC50m
2026-06-21 EJA984 - Jun 21, 17:05 UTCJun 21, 18:39 UTC1h 35m
2026-06-21 EJA984 - Jun 21, 14:59 UTCJun 21, 15:49 UTC50m
2026-06-21 EJA984 - Jun 21, 13:09 UTCJun 21, 14:19 UTC1h 10m
2026-06-20 EJA984 - Jun 20, 22:10 UTCJun 20, 23:59 UTC1h 50m
2026-06-20 EJA984 CLE → CEU Jun 20, 19:29 UTCJun 20, 20:40 UTC1h 10m
2026-06-20 EJA984 - Jun 20, 16:29 UTCJun 20, 16:59 UTC30m
2026-06-15 EJA984 - Jun 15, 14:40 UTCJun 15, 15:40 UTC1h 0m
2026-06-14 EJA984 - Jun 14, 22:20 UTCJun 15, 01:10 UTC2h 50m
2026-06-14 EJA984 - Jun 14, 17:50 UTCJun 14, 20:15 UTC2h 25m
2026-06-14 EJA984 - Jun 14, 14:35 UTCJun 14, 15:35 UTC1h 0m
2026-06-13 EJA984 IAD → BWI Jun 13, 14:30 UTCJun 13, 16:15 UTC1h 45m
2026-06-11 EJA984 IAD → BWI Jun 11, 20:00 UTCJun 11, 20:30 UTC30m
2026-06-11 EJA984 IAD → BWI Jun 11, 17:30 UTCJun 11, 18:05 UTC35m
2026-06-11 EJA984 IAD → BWI Jun 11, 14:10 UTCJun 11, 16:25 UTC2h 15m
2026-06-11 EJA984 IAD → BWI Jun 11, 12:00 UTCJun 11, 12:55 UTC55m
2026-06-10 EJA984 IAD → BWI Jun 10, 17:20 UTCJun 10, 20:10 UTC2h 50m
2026-06-10 EJA984 IAD → BWI Jun 10, 15:00 UTCJun 10, 16:00 UTC1h 0m
2026-06-10 EJA984 IAD → BWI Jun 10, 12:40 UTCJun 10, 13:50 UTC1h 10m
2026-06-09 EJA984 IAD → BWI Jun 9, 22:15 UTCJun 9, 23:15 UTC1h 0m
2026-06-09 EJA984 IAD → BWI Jun 9, 19:40 UTCJun 9, 20:55 UTC1h 15m
2026-06-09 EJA984 IAD → BWI Jun 9, 11:55 UTCJun 9, 14:25 UTC2h 30m
2026-06-08 N984QS - Jun 8, 15:25 UTCJun 8, 15:55 UTC30m
2026-05-21 N984QS - May 21, 13:35 UTCMay 21, 22:25 UTC8h 50m
2026-05-20 EJA984 IAD → BWI May 20, 20:05 UTCMay 20, 20:50 UTC45m
2026-05-20 EJA984 IAD → BWI May 20, 17:40 UTCMay 20, 18:10 UTC30m

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 N984QS page for operator, model, and routing details .

Mode-S ADBB6F frequently asked

What is Mode-S code ADBB6F?
ADBB6F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N984QS.
Where is Mode-S ADBB6F registered?
Mode-S code ADBB6F 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 ADBB6F broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADBB6F, octal 53335557, decimal 11,385,711.
What flights does ADBB6F operate?
Mode-S ADBB6F has broadcast 2 distinct callsigns, including EJA984, N984QS.