Apparatus

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sensors Mode-S transponder

AD6503

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N962QS · operated by NETJETS SALES INC, BLUE HEAVEN AVIATION LLC, MCCORMICK BRONWYN, DELTA WINGS LLC, DILLON ERIC, DILLON HOLLY

Hex
AD6503
Octal
53262403
Decimal
11,363,587
Country
US
Tail
N962QS
Type
C68A
No current signal · last broadcast 4h ago
Flights observed
113
Distinct callsigns
3
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AD6503.

Country allocation

The ICAO 24-bit address AD6503 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
EJA962 NetJets 93 2026-05-29
N962QS - 18 2026-05-22
EJA0290 NetJets 2 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA962 MDW → APF May 29, 20:45 UTCMay 29, 21:50 UTC1h 5m
2026-05-29 EJA962 MDW → APF May 29, 14:30 UTCMay 29, 19:05 UTC4h 35m
2026-05-28 EJA962 MDW → APF May 28, 19:05 UTCMay 28, 20:00 UTC55m
2026-05-28 EJA962 MDW → APF May 28, 17:05 UTCMay 28, 17:20 UTC15m
2026-05-28 EJA962 MDW → APF May 28, 13:05 UTCMay 28, 15:55 UTC2h 50m
2026-05-27 EJA962 MDW → APF May 27, 23:30 UTCMay 28, 01:40 UTC2h 10m
2026-05-27 EJA962 MDW → APF May 27, 21:10 UTCMay 27, 22:20 UTC1h 10m
2026-05-27 EJA962 MDW → APF May 27, 14:05 UTCMay 27, 17:35 UTC3h 30m
2026-05-26 EJA962 MDW → APF May 26, 21:25 UTCMay 26, 22:09 UTC45m
2026-05-26 EJA962 MDW → APF May 26, 16:30 UTCMay 26, 19:20 UTC2h 50m
2026-05-25 EJA962 MDW → APF May 25, 20:50 UTCMay 25, 22:55 UTC2h 5m
2026-05-25 EJA962 MDW → APF May 25, 17:20 UTCMay 25, 20:19 UTC2h 59m
2026-05-24 EJA962 MDW → APF May 24, 20:50 UTCMay 24, 21:05 UTC15m
2026-05-24 EJA962 MDW → APF May 24, 19:10 UTCMay 24, 20:00 UTC50m
2026-05-23 EJA962 MDW → APF May 23, 17:30 UTCMay 23, 20:15 UTC2h 46m
2026-05-23 EJA962 MDW → APF May 23, 14:55 UTCMay 23, 15:45 UTC50m
2026-05-23 EJA962 MDW → APF May 23, 10:45 UTCMay 23, 13:30 UTC2h 45m
2026-05-22 EJA962 MDW → APF May 22, 20:45 UTCMay 22, 21:15 UTC30m
2026-05-22 N962QS - May 22, 19:15 UTCMay 22, 20:00 UTC45m
2026-05-22 N962QS - May 22, 16:15 UTCMay 22, 16:25 UTC10m
2026-05-22 N962QS - May 22, 14:40 UTCMay 22, 15:00 UTC20m
2026-05-21 N962QS - May 21, 11:15 UTCMay 21, 14:40 UTC3h 25m
2026-05-20 EJA0290 HPN → DCA May 20, 16:55 UTCMay 20, 17:45 UTC50m
2026-05-20 EJA0290 HPN → DCA May 20, 13:10 UTCMay 20, 13:55 UTC45m
2026-05-18 EJA962 MDW → APF May 18, 20:10 UTCMay 18, 20:45 UTC35m
2026-05-18 EJA962 MDW → APF May 18, 16:10 UTCMay 18, 17:45 UTC1h 35m
2026-05-18 EJA962 MDW → APF May 18, 12:50 UTCMay 18, 14:00 UTC1h 10m
2026-05-18 EJA962 MDW → APF May 18, 11:10 UTCMay 18, 12:00 UTC50m
2026-05-18 EJA962 MDW → APF May 18, 00:20 UTCMay 18, 01:10 UTC50m
2026-05-17 EJA962 MDW → APF May 17, 21:45 UTCMay 17, 22:40 UTC55m
2026-05-17 EJA962 MDW → APF May 17, 20:01 UTCMay 17, 20:40 UTC40m
2026-05-17 EJA962 MDW → APF May 17, 16:50 UTCMay 17, 17:35 UTC45m
2026-05-17 EJA962 MDW → APF May 17, 13:40 UTCMay 17, 14:45 UTC1h 5m
2026-05-16 EJA962 MDW → APF May 16, 21:25 UTCMay 16, 22:50 UTC1h 25m
2026-05-16 EJA962 MDW → APF May 16, 12:55 UTCMay 16, 15:40 UTC2h 45m
2026-05-15 EJA962 MDW → APF May 15, 22:45 UTCMay 15, 23:25 UTC40m
2026-05-15 EJA962 MDW → APF May 15, 20:30 UTCMay 15, 21:50 UTC1h 20m
2026-05-15 N962QS - May 15, 14:30 UTCMay 15, 18:10 UTC3h 39m
2026-05-14 N962QS - May 14, 22:20 UTCMay 14, 22:35 UTC15m
2026-05-14 N962QS - May 14, 20:55 UTCMay 14, 21:15 UTC20m
2026-05-14 N962QS - May 14, 16:35 UTCMay 14, 19:20 UTC2h 45m
2026-05-14 EJA962 MDW → APF May 14, 10:40 UTCMay 14, 12:30 UTC1h 50m
2026-05-13 EJA962 MDW → APF May 13, 21:45 UTCMay 13, 22:00 UTC15m
2026-05-13 EJA962 MDW → APF May 13, 19:00 UTCMay 13, 20:45 UTC1h 45m
2026-05-13 EJA962 MDW → APF May 13, 16:45 UTCMay 13, 17:20 UTC35m
2026-05-13 EJA962 MDW → APF May 13, 12:00 UTCMay 13, 13:05 UTC1h 5m
2026-05-12 EJA962 MDW → APF May 12, 21:20 UTCMay 13, 01:10 UTC3h 50m
2026-05-12 EJA962 MDW → APF May 12, 17:15 UTCMay 12, 18:10 UTC55m
2026-05-11 EJA962 MDW → APF May 11, 14:15 UTCMay 11, 21:50 UTC7h 36m
2026-05-10 EJA962 MDW → APF May 10, 22:45 UTCMay 11, 00:10 UTC1h 25m

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 N962QS page for operator, model, and routing details .

Mode-S AD6503 frequently asked

What is Mode-S code AD6503?
AD6503 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N962QS.
Where is Mode-S AD6503 registered?
Mode-S code AD6503 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 AD6503 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 AD6503, octal 53262403, decimal 11,363,587.
What flights does AD6503 operate?
Mode-S AD6503 has broadcast 3 distinct callsigns, including EJA962, N962QS, EJA0290.