Apparatus

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sensors Mode-S transponder

A84A50

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N633QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, ACE AVIATION I LLC, AIRGO LLC, AREA 15 VENTURES LLC, BALLARD PARTNERS INC, DATUM 9 CAPITAL LLC

Hex
A84A50
Octal
52045120
Decimal
11,029,072
Country
US
Tail
N633QS
Type
C68A
Broadcasting now · callsign EJA633 · 41,000 ft
Flights observed
178
Distinct callsigns
2
Country
US
Last broadcast
6h ago

Current position

A84A50 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A84A50 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
EJA633 - 163 2026-07-14
N633QS - 15 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EJA633 - Jul 14, 06:20 UTCJul 14, 06:40 UTC20m
2026-07-14 EJA633 - Jul 14, 05:05 UTCJul 14, 05:45 UTC40m
2026-07-14 EJA633 - Jul 14, 02:25 UTCJul 14, 03:00 UTC35m
2026-07-13 EJA633 - Jul 13, 22:05 UTCJul 13, 22:15 UTC10m
2026-07-13 EJA633 - Jul 13, 20:55 UTCJul 13, 21:15 UTC20m
2026-07-13 EJA633 - Jul 13, 19:10 UTCJul 13, 19:25 UTC15m
2026-07-13 EJA633 - Jul 13, 16:35 UTCJul 13, 17:50 UTC1h 15m
2026-07-13 EJA633 - Jul 13, 02:10 UTCJul 13, 02:25 UTC15m
2026-07-13 EJA633 - Jul 13, 00:05 UTCJul 13, 01:01 UTC55m
2026-07-12 EJA633 - Jul 12, 21:20 UTCJul 12, 22:25 UTC1h 5m
2026-07-12 EJA633 - Jul 12, 19:50 UTCJul 12, 20:30 UTC40m
2026-07-12 EJA633 - Jul 12, 17:15 UTCJul 12, 18:20 UTC1h 5m
2026-07-11 EJA633 - Jul 11, 22:35 UTCJul 12, 02:50 UTC4h 15m
2026-07-11 EJA633 - Jul 11, 18:35 UTCJul 11, 19:50 UTC1h 15m
2026-07-11 EJA633 - Jul 11, 16:05 UTCJul 11, 17:10 UTC1h 5m
2026-07-11 EJA633 - Jul 11, 14:50 UTCJul 11, 15:00 UTC10m
2026-07-10 EJA633 - Jul 10, 23:25 UTCJul 11, 01:05 UTC1h 40m
2026-07-10 EJA633 - Jul 10, 20:25 UTCJul 10, 21:15 UTC50m
2026-07-10 EJA633 - Jul 10, 18:45 UTCJul 10, 19:10 UTC25m
2026-07-10 EJA633 - Jul 10, 16:00 UTCJul 10, 16:50 UTC50m
2026-07-10 EJA633 - Jul 10, 14:20 UTCJul 10, 15:05 UTC45m
2026-07-09 EJA633 - Jul 9, 19:30 UTCJul 9, 21:45 UTC2h 15m
2026-07-09 EJA633 - Jul 9, 17:55 UTCJul 9, 18:25 UTC30m
2026-07-09 EJA633 - Jul 9, 15:10 UTCJul 9, 15:35 UTC25m
2026-07-08 EJA633 - Jul 8, 22:15 UTCJul 8, 23:55 UTC1h 40m
2026-07-08 EJA633 - Jul 8, 20:35 UTCJul 8, 20:50 UTC15m
2026-07-08 EJA633 IAD → PWK Jul 8, 13:25 UTCJul 8, 14:55 UTC1h 30m
2026-07-07 EJA633 - Jul 7, 22:45 UTCJul 7, 23:35 UTC50m
2026-07-07 EJA633 - Jul 7, 19:10 UTCJul 7, 19:35 UTC25m
2026-07-07 EJA633 - Jul 7, 17:25 UTCJul 7, 18:20 UTC55m
2026-07-07 EJA633 RDU → TEB Jul 7, 12:55 UTCJul 7, 14:05 UTC1h 10m
2026-07-06 EJA633 - Jul 6, 17:00 UTCJul 6, 21:00 UTC4h 0m
2026-07-06 EJA633 EUG → SLC Jul 6, 14:05 UTCJul 6, 15:35 UTC1h 30m
2026-07-05 EJA633 FSD → EUG Jul 5, 19:50 UTCJul 5, 23:05 UTC3h 15m
2026-07-05 EJA633 - Jul 5, 16:45 UTCJul 5, 17:50 UTC1h 5m
2026-07-04 EJA633 MSP → MDW Jul 4, 16:45 UTCJul 4, 17:55 UTC1h 10m
2026-07-03 EJA633 DSM → MSP Jul 3, 21:25 UTCJul 3, 22:10 UTC45m
2026-07-03 EJA633 - Jul 3, 18:30 UTCJul 3, 20:40 UTC2h 10m
2026-07-03 EJA633 MSP → ISW Jul 3, 17:20 UTCJul 3, 17:55 UTC35m
2026-07-03 EJA633 - Jul 3, 11:50 UTCJul 3, 14:55 UTC3h 5m
2026-07-02 EJA633 - Jul 2, 19:45 UTCJul 2, 19:55 UTC10m
2026-07-02 EJA633 AUS → RKD Jul 2, 14:40 UTCJul 2, 18:35 UTC3h 55m
2026-07-01 EJA633 - Jul 1, 21:25 UTCJul 1, 21:55 UTC30m
2026-07-01 EJA633 - Jul 1, 17:30 UTCJul 1, 19:35 UTC2h 5m
2026-07-01 EJA633 - Jul 1, 13:15 UTCJul 1, 15:20 UTC2h 5m
2026-06-30 EJA633 - Jun 30, 22:00 UTCJun 30, 22:40 UTC40m
2026-06-30 EJA633 - Jun 30, 15:30 UTCJun 30, 17:50 UTC2h 20m
2026-06-29 EJA633 - Jun 29, 13:24 UTCJun 29, 15:54 UTC2h 30m
2026-06-28 EJA633 - Jun 28, 23:14 UTCJun 29, 00:20 UTC1h 5m
2026-06-28 EJA633 TEB → PWK Jun 28, 20:29 UTCJun 28, 22:20 UTC1h 50m

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 N633QS page for operator, model, and routing details .

Mode-S A84A50 frequently asked

What is Mode-S code A84A50?
A84A50 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N633QS.
Where is Mode-S A84A50 registered?
Mode-S code A84A50 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 A84A50 broadcasting right now?
Yes. Mode-S A84A50 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A84A50, octal 52045120, decimal 11,029,072.
What flights does A84A50 operate?
Mode-S A84A50 has broadcast 2 distinct callsigns, including EJA633, N633QS.