Apparatus

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sensors Mode-S transponder

A66695

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N511QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, CMC AVIATION LLC, EAST CREEK NJ LLC, GAUMARD SCIENTIFIC COMPANY INC, GO TANGO LLC, THOMPSON KEVIN

Hex
A66695
Octal
51463225
Decimal
10,905,237
Country
US
Tail
N511QS
Type
C68A
No current signal · last broadcast 19h ago
Flights observed
101
Distinct callsigns
3
Country
US
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S A66695.

Country allocation

The ICAO 24-bit address A66695 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 3 distinct

Callsign Airline Flights Last seen
EJA511 NetJets 95 2026-05-29
N511QS - 4 2026-05-15
EJA8365 NetJets 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA511 TEB → SAT May 29, 15:25 UTCMay 29, 15:55 UTC31m
2026-05-29 EJA511 TEB → SAT May 29, 13:50 UTCMay 29, 14:40 UTC50m
2026-05-29 EJA511 TEB → SAT May 29, 11:30 UTCMay 29, 12:15 UTC45m
2026-05-28 EJA8365 GON → DCA May 28, 20:30 UTCMay 28, 21:25 UTC55m
2026-05-28 EJA8365 GON → DCA May 28, 17:55 UTCMay 28, 18:55 UTC1h 0m
2026-05-28 EJA511 TEB → SAT May 28, 14:10 UTCMay 28, 15:55 UTC1h 45m
2026-05-28 EJA511 TEB → SAT May 28, 11:40 UTCMay 28, 12:25 UTC45m
2026-05-27 EJA511 TEB → SAT May 27, 19:25 UTCMay 27, 21:40 UTC2h 15m
2026-05-27 EJA511 TEB → SAT May 27, 14:20 UTCMay 27, 16:45 UTC2h 25m
2026-05-27 EJA511 TEB → SAT May 27, 00:30 UTCMay 27, 03:04 UTC2h 35m
2026-05-26 EJA511 TEB → SAT May 26, 23:14 UTCMay 26, 23:35 UTC20m
2026-05-26 EJA511 TEB → SAT May 26, 15:09 UTCMay 26, 18:55 UTC3h 45m
2026-05-26 EJA511 TEB → SAT May 26, 12:20 UTCMay 26, 13:04 UTC45m
2026-05-25 EJA511 TEB → SAT May 25, 21:30 UTCMay 25, 22:55 UTC1h 25m
2026-05-25 EJA511 TEB → SAT May 25, 19:00 UTCMay 25, 19:35 UTC34m
2026-05-25 EJA511 TEB → SAT May 25, 14:15 UTCMay 25, 17:55 UTC3h 40m
2026-05-25 EJA511 TEB → SAT May 25, 11:50 UTCMay 25, 12:25 UTC35m
2026-05-24 EJA511 TEB → SAT May 24, 20:25 UTCMay 24, 21:05 UTC40m
2026-05-24 EJA511 TEB → SAT May 24, 17:15 UTCMay 24, 19:30 UTC2h 15m
2026-05-24 EJA511 TEB → SAT May 24, 15:10 UTCMay 24, 15:45 UTC35m
2026-05-21 EJA511 TEB → SAT May 21, 21:40 UTCMay 21, 23:15 UTC1h 35m
2026-05-21 EJA511 TEB → SAT May 21, 16:30 UTCMay 21, 20:30 UTC4h 0m
2026-05-21 EJA511 TEB → SAT May 21, 13:45 UTCMay 21, 14:45 UTC1h 0m
2026-05-17 EJA511 TEB → SAT May 17, 22:45 UTCMay 18, 01:20 UTC2h 35m
2026-05-17 EJA511 TEB → SAT May 17, 19:25 UTCMay 17, 22:15 UTC2h 50m
2026-05-17 EJA511 TEB → SAT May 17, 14:35 UTCMay 17, 16:10 UTC1h 35m
2026-05-17 EJA511 TEB → SAT May 17, 12:05 UTCMay 17, 13:01 UTC55m
2026-05-16 EJA511 TEB → SAT May 16, 18:15 UTCMay 16, 19:20 UTC1h 5m
2026-05-16 EJA511 TEB → SAT May 16, 16:20 UTCMay 16, 16:55 UTC35m
2026-05-16 EJA511 TEB → SAT May 16, 13:21 UTCMay 16, 15:05 UTC1h 45m
2026-05-16 EJA511 TEB → SAT May 16, 00:10 UTCMay 16, 01:50 UTC1h 40m
2026-05-15 N511QS - May 15, 16:10 UTCMay 15, 22:55 UTC6h 45m
2026-05-15 EJA511 TEB → SAT May 15, 14:55 UTCMay 15, 15:00 UTC5m
2026-05-14 EJA511 TEB → SAT May 14, 23:10 UTCMay 15, 02:20 UTC3h 10m
2026-05-14 EJA511 TEB → SAT May 14, 18:55 UTCMay 14, 21:45 UTC2h 50m
2026-05-14 EJA511 TEB → SAT May 14, 16:25 UTCMay 14, 17:15 UTC50m
2026-05-14 EJA511 TEB → SAT May 14, 01:40 UTCMay 14, 02:20 UTC40m
2026-05-13 EJA511 TEB → SAT May 13, 22:10 UTCMay 14, 00:30 UTC2h 20m
2026-05-13 EJA511 TEB → SAT May 13, 15:20 UTCMay 13, 17:10 UTC1h 50m
2026-05-13 EJA511 TEB → SAT May 13, 00:50 UTCMay 13, 01:15 UTC25m
2026-05-12 EJA511 TEB → SAT May 12, 20:50 UTCMay 12, 21:25 UTC35m
2026-05-12 EJA511 TEB → SAT May 12, 18:15 UTCMay 12, 19:55 UTC1h 40m
2026-05-12 EJA511 TEB → SAT May 12, 16:40 UTCMay 12, 17:25 UTC45m
2026-05-09 EJA511 TEB → SAT May 9, 17:10 UTCMay 9, 17:30 UTC20m
2026-05-09 EJA511 TEB → SAT May 9, 12:35 UTCMay 9, 16:35 UTC4h 0m
2026-05-08 EJA511 TEB → SAT May 8, 21:20 UTCMay 8, 22:00 UTC40m
2026-05-08 EJA511 TEB → SAT May 8, 18:00 UTCMay 8, 20:25 UTC2h 25m
2026-05-08 EJA511 TEB → SAT May 8, 14:20 UTCMay 8, 16:10 UTC1h 50m
2026-05-07 EJA511 TEB → SAT May 7, 22:59 UTCMay 7, 23:39 UTC40m
2026-05-07 EJA511 TEB → SAT May 7, 19:25 UTCMay 7, 20:05 UTC40m

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 N511QS page for operator, model, and routing details .

Mode-S A66695 frequently asked

What is Mode-S code A66695?
A66695 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N511QS.
Where is Mode-S A66695 registered?
Mode-S code A66695 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 A66695 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A66695, octal 51463225, decimal 10,905,237.
What flights does A66695 operate?
Mode-S A66695 has broadcast 3 distinct callsigns, including EJA511, N511QS, EJA8365.