Apparatus

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sensors Mode-S transponder

A9EDE9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N739QS · BOMBARDIER BD-100 Challenger 350 · operated by NETJETS SALES INC, ALTEC VENTURES LLC, BAGNARD CO LLC, BBJEC LLC, SMITH BRAD, ANDERSON CHRISTOPHER H TRUSTEE

Hex
A9EDE9
Octal
52366751
Decimal
11,136,489
Country
US
Tail
N739QS
Type
CL35
No current signal · last broadcast 10h ago
Flights observed
101
Distinct callsigns
2
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A9EDE9.

Country allocation

The ICAO 24-bit address A9EDE9 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
EJA739 - 93 2026-07-13
N739QS - 8 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EJA739 - Jul 13, 23:50 UTCJul 14, 00:35 UTC45m
2026-07-13 EJA739 - Jul 13, 22:10 UTCJul 13, 22:25 UTC15m
2026-07-13 EJA739 - Jul 13, 18:05 UTCJul 13, 18:55 UTC50m
2026-07-13 EJA739 OXR → BUR Jul 13, 16:35 UTCJul 13, 16:50 UTC15m
2026-07-12 EJA739 - Jul 12, 16:45 UTCJul 12, 23:45 UTC7h 0m
2026-07-12 EJA739 IAD → EWB Jul 12, 13:55 UTCJul 12, 14:55 UTC1h 0m
2026-07-11 EJA739 - Jul 11, 17:40 UTCJul 11, 18:55 UTC1h 15m
2026-07-11 EJA739 IAD → PDK Jul 11, 13:55 UTCJul 11, 15:15 UTC1h 20m
2026-07-11 EJA739 - Jul 11, 10:45 UTCJul 11, 12:00 UTC1h 15m
2026-07-10 EJA739 - Jul 10, 19:50 UTCJul 10, 20:25 UTC35m
2026-07-10 EJA739 - Jul 10, 17:00 UTCJul 10, 18:50 UTC1h 50m
2026-07-10 EJA739 BOS → TEB Jul 10, 01:55 UTCJul 10, 02:45 UTC50m
2026-07-09 EJA739 - Jul 9, 22:10 UTCJul 9, 22:35 UTC25m
2026-07-09 EJA739 - Jul 9, 17:30 UTCJul 9, 20:40 UTC3h 10m
2026-07-09 EJA739 - Jul 9, 14:20 UTCJul 9, 15:15 UTC55m
2026-07-09 EJA739 - Jul 9, 00:50 UTCJul 9, 01:15 UTC25m
2026-07-08 EJA739 - Jul 8, 22:30 UTCJul 8, 23:30 UTC1h 0m
2026-07-08 EJA739 APA → SNA Jul 8, 19:55 UTCJul 8, 21:45 UTC1h 50m
2026-07-07 EJA739 - Jul 7, 23:15 UTCJul 8, 00:25 UTC1h 10m
2026-07-07 EJA739 - Jul 7, 18:45 UTCJul 7, 20:05 UTC1h 20m
2026-07-06 EJA739 - Jul 6, 23:45 UTCJul 7, 02:00 UTC2h 15m
2026-07-06 EJA739 NUQ → BLI Jul 6, 20:00 UTCJul 6, 21:50 UTC1h 50m
2026-07-06 EJA739 - Jul 6, 18:35 UTCJul 6, 19:15 UTC40m
2026-07-06 EJA739 - Jul 6, 16:15 UTCJul 6, 16:45 UTC30m
2026-07-06 EJA739 - Jul 6, 01:40 UTCJul 6, 02:50 UTC1h 10m
2026-07-05 N739QS - Jul 5, 22:55 UTCJul 5, 23:45 UTC50m
2026-07-04 N739QS - Jul 4, 17:20 UTCJul 4, 17:55 UTC35m
2026-07-03 EJA739 LAS → OAK Jul 3, 21:30 UTCJul 3, 22:35 UTC1h 5m
2026-07-03 EJA739 SJC → LAS Jul 3, 19:15 UTCJul 3, 20:20 UTC1h 5m
2026-07-03 EJA739 MSP → SJC Jul 3, 14:15 UTCJul 3, 17:40 UTC3h 25m
2026-07-03 EJA739 - Jul 3, 12:20 UTCJul 3, 13:00 UTC40m
2026-07-02 EJA739 - Jul 2, 21:35 UTCJul 2, 22:35 UTC1h 0m
2026-07-02 EJA739 MGW → STL Jul 2, 18:55 UTCJul 2, 20:10 UTC1h 15m
2026-07-02 EJA739 - Jul 2, 17:10 UTCJul 2, 17:50 UTC40m
2026-07-02 EJA739 - Jul 2, 15:00 UTCJul 2, 16:30 UTC1h 30m
2026-07-02 EJA739 - Jul 2, 12:40 UTCJul 2, 14:05 UTC1h 25m
2026-06-19 EJA739 - Jun 19, 02:14 UTCJun 19, 03:05 UTC50m
2026-06-18 EJA739 PHX → DAL Jun 18, 22:00 UTCJun 19, 00:00 UTC2h 0m
2026-06-18 EJA739 - Jun 18, 14:35 UTCJun 18, 16:40 UTC2h 5m
2026-06-16 N739QS SBA → DAL Jun 16, 17:24 UTCJun 16, 23:15 UTC5h 51m
2026-06-16 EJA739 SJC → SBA Jun 16, 14:45 UTCJun 16, 15:24 UTC40m
2026-06-16 EJA739 BFI → SJC Jun 16, 03:55 UTCJun 16, 05:34 UTC1h 40m
2026-06-15 EJA739 - Jun 15, 18:15 UTCJun 15, 22:35 UTC4h 20m
2026-06-15 EJA739 VNY → SCF Jun 15, 13:10 UTCJun 15, 14:05 UTC55m
2026-06-14 EJA739 LAS → VNY Jun 14, 21:25 UTCJun 14, 22:10 UTC45m
2026-06-13 EJA739 RDU → LAS Jun 13, 20:05 UTCJun 14, 00:45 UTC4h 40m
2026-06-13 EJA739 - Jun 13, 17:20 UTCJun 13, 18:25 UTC1h 5m
2026-06-10 EJA739 VNY → TEB Jun 10, 23:25 UTCJun 11, 04:00 UTC4h 35m
2026-06-10 EJA739 VNY → TEB Jun 10, 16:35 UTCJun 10, 20:40 UTC4h 5m
2026-06-09 EJA739 VNY → TEB Jun 9, 19:05 UTCJun 9, 21:05 UTC2h 0m

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 N739QS page for operator, model, and routing details .

Mode-S A9EDE9 frequently asked

What is Mode-S code A9EDE9?
A9EDE9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N739QS.
Where is Mode-S A9EDE9 registered?
Mode-S code A9EDE9 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 A9EDE9 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9EDE9, octal 52366751, decimal 11,136,489.
What flights does A9EDE9 operate?
Mode-S A9EDE9 has broadcast 2 distinct callsigns, including EJA739, N739QS.