Apparatus

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sensors Mode-S transponder

A7B169

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N595QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, RING CARL D, RING PATRICIA D, DBS AIR LLC, E3K HOLDINGS LLC, FAVEY & PICKLES LLC

Hex
A7B169
Octal
51730551
Decimal
10,989,929
Country
US
Tail
N595QS
Type
C68A
No current signal · last broadcast 4h ago
Flights observed
129
Distinct callsigns
2
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A7B169.

Country allocation

The ICAO 24-bit address A7B169 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
EJA595 NetJets 119 2026-05-30
N595QS - 10 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EJA595 DCA → IAD May 30, 00:15 UTCMay 30, 01:00 UTC45m
2026-05-29 EJA595 DCA → IAD May 29, 20:45 UTCMay 29, 22:40 UTC1h 55m
2026-05-29 EJA595 DCA → IAD May 29, 16:50 UTCMay 29, 17:25 UTC35m
2026-05-29 EJA595 DCA → IAD May 29, 14:00 UTCMay 29, 15:55 UTC1h 55m
2026-05-28 EJA595 DCA → IAD May 28, 21:40 UTCMay 28, 22:05 UTC25m
2026-05-28 EJA595 DCA → IAD May 28, 20:15 UTCMay 28, 20:50 UTC35m
2026-05-28 EJA595 DCA → IAD May 28, 18:05 UTCMay 28, 19:15 UTC1h 10m
2026-05-26 EJA595 DCA → IAD May 26, 20:15 UTCMay 26, 20:54 UTC40m
2026-05-26 EJA595 DCA → IAD May 26, 17:15 UTCMay 26, 18:45 UTC1h 30m
2026-05-26 EJA595 DCA → IAD May 26, 14:55 UTCMay 26, 15:29 UTC35m
2026-05-26 EJA595 DCA → IAD May 26, 12:50 UTCMay 26, 14:05 UTC1h 15m
2026-05-25 EJA595 DCA → IAD May 25, 23:04 UTCMay 26, 00:14 UTC1h 10m
2026-05-25 EJA595 DCA → IAD May 25, 18:40 UTCMay 25, 21:40 UTC2h 59m
2026-05-25 EJA595 DCA → IAD May 25, 16:25 UTCMay 25, 17:05 UTC40m
2026-05-25 EJA595 DCA → IAD May 25, 14:10 UTCMay 25, 14:45 UTC35m
2026-05-24 EJA595 DCA → IAD May 24, 15:15 UTCMay 24, 17:35 UTC2h 20m
2026-05-23 EJA595 DCA → IAD May 23, 13:45 UTCMay 23, 16:35 UTC2h 50m
2026-05-23 EJA595 DCA → IAD May 23, 12:10 UTCMay 23, 12:40 UTC30m
2026-05-23 N595QS - May 23, 02:25 UTCMay 23, 02:50 UTC24m
2026-05-22 N595QS - May 22, 20:00 UTCMay 23, 01:05 UTC5h 5m
2026-05-22 EJA595 DCA → IAD May 22, 17:55 UTCMay 22, 18:15 UTC20m
2026-05-22 EJA595 DCA → IAD May 22, 12:10 UTCMay 22, 16:50 UTC4h 40m
2026-05-21 EJA595 DCA → IAD May 21, 20:25 UTCMay 21, 21:50 UTC1h 25m
2026-05-21 EJA595 DCA → IAD May 21, 18:30 UTCMay 21, 19:05 UTC35m
2026-05-21 EJA595 DCA → IAD May 21, 16:45 UTCMay 21, 17:10 UTC25m
2026-05-21 EJA595 DCA → IAD May 21, 14:40 UTCMay 21, 15:55 UTC1h 15m
2026-05-21 EJA595 DCA → IAD May 21, 12:15 UTCMay 21, 13:25 UTC1h 10m
2026-05-20 EJA595 DCA → IAD May 20, 21:50 UTCMay 20, 22:55 UTC1h 5m
2026-05-20 EJA595 DCA → IAD May 20, 19:50 UTCMay 20, 20:55 UTC1h 5m
2026-05-20 EJA595 DCA → IAD May 20, 16:15 UTCMay 20, 18:55 UTC2h 40m
2026-05-20 EJA595 DCA → IAD May 20, 13:45 UTCMay 20, 14:55 UTC1h 10m
2026-05-20 EJA595 DCA → IAD May 20, 11:55 UTCMay 20, 12:35 UTC40m
2026-05-19 EJA595 DCA → IAD May 19, 18:25 UTCMay 19, 19:55 UTC1h 30m
2026-05-19 EJA595 DCA → IAD May 19, 13:15 UTCMay 19, 15:35 UTC2h 20m
2026-05-18 EJA595 DCA → IAD May 18, 19:20 UTCMay 18, 20:40 UTC1h 20m
2026-05-18 EJA595 DCA → IAD May 18, 17:20 UTCMay 18, 17:50 UTC30m
2026-05-18 EJA595 DCA → IAD May 18, 14:10 UTCMay 18, 15:30 UTC1h 20m
2026-05-18 EJA595 DCA → IAD May 18, 00:30 UTCMay 18, 00:55 UTC25m
2026-05-17 EJA595 DCA → IAD May 17, 22:01 UTCMay 17, 22:50 UTC50m
2026-05-17 EJA595 DCA → IAD May 17, 19:55 UTCMay 17, 20:45 UTC50m
2026-05-17 EJA595 DCA → IAD May 17, 16:30 UTCMay 17, 18:01 UTC1h 30m
2026-05-17 EJA595 DCA → IAD May 17, 13:20 UTCMay 17, 15:40 UTC2h 20m
2026-05-16 EJA595 DCA → IAD May 16, 20:45 UTCMay 16, 21:35 UTC50m
2026-05-16 EJA595 DCA → IAD May 16, 17:30 UTCMay 16, 19:15 UTC1h 45m
2026-05-16 EJA595 DCA → IAD May 16, 14:51 UTCMay 16, 15:55 UTC1h 5m
2026-05-15 EJA595 DCA → IAD May 15, 16:50 UTCMay 15, 21:30 UTC4h 40m
2026-05-15 EJA595 DCA → IAD May 15, 14:40 UTCMay 15, 15:20 UTC39m
2026-05-15 EJA595 DCA → IAD May 15, 12:20 UTCMay 15, 12:45 UTC25m
2026-05-14 EJA595 DCA → IAD May 14, 19:25 UTCMay 14, 19:40 UTC15m
2026-05-14 EJA595 DCA → IAD May 14, 15:30 UTCMay 14, 18:00 UTC2h 30m

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 N595QS page for operator, model, and routing details .

Mode-S A7B169 frequently asked

What is Mode-S code A7B169?
A7B169 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N595QS.
Where is Mode-S A7B169 registered?
Mode-S code A7B169 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 A7B169 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 A7B169, octal 51730551, decimal 10,989,929.
What flights does A7B169 operate?
Mode-S A7B169 has broadcast 2 distinct callsigns, including EJA595, N595QS.