Apparatus

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sensors Mode-S transponder

A3A263

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N333QS · EMBRAER EMB-505 Phenom 300 · operated by NETJETS SALES INC, BALLARD PARTNERS INC, J & EM LLC, SCHIFF FAMILY LLC, SIERRA BRAVO LLC

Hex
A3A263
Octal
50721143
Decimal
10,723,939
Country
US
Tail
N333QS
Type
E55P
No current signal · last broadcast 12h ago
Flights observed
199
Distinct callsigns
2
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A3A263.

Country allocation

The ICAO 24-bit address A3A263 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
EJA333 - 193 2026-07-17
N333QS - 6 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 EJA333 - Jul 17, 19:15 UTCJul 17, 20:35 UTC1h 20m
2026-07-17 EJA333 PIE → FLL Jul 17, 01:59 UTCJul 17, 02:45 UTC45m
2026-07-16 EJA333 - Jul 16, 23:20 UTCJul 17, 01:25 UTC2h 5m
2026-07-16 EJA333 - Jul 16, 20:05 UTCJul 16, 20:49 UTC45m
2026-07-16 EJA333 - Jul 16, 17:54 UTCJul 16, 18:59 UTC1h 5m
2026-07-16 EJA333 - Jul 16, 15:19 UTCJul 16, 16:00 UTC40m
2026-07-16 EJA333 - Jul 16, 00:15 UTCJul 16, 02:00 UTC1h 45m
2026-07-15 EJA333 - Jul 15, 19:10 UTCJul 15, 22:20 UTC3h 10m
2026-07-15 EJA333 - Jul 15, 17:30 UTCJul 15, 18:30 UTC1h 0m
2026-07-15 EJA333 - Jul 15, 15:30 UTCJul 15, 15:55 UTC25m
2026-07-15 EJA333 - Jul 15, 12:45 UTCJul 15, 14:40 UTC1h 55m
2026-07-14 EJA333 - Jul 14, 16:05 UTCJul 14, 18:35 UTC2h 30m
2026-07-14 EJA333 - Jul 14, 11:35 UTCJul 14, 13:25 UTC1h 50m
2026-07-13 EJA333 - Jul 13, 22:10 UTCJul 13, 22:40 UTC30m
2026-07-13 EJA333 - Jul 13, 19:15 UTCJul 13, 20:10 UTC55m
2026-07-13 EJA333 - Jul 13, 18:15 UTCJul 13, 18:35 UTC20m
2026-07-13 EJA333 - Jul 13, 16:15 UTCJul 13, 17:15 UTC1h 0m
2026-07-13 EJA333 - Jul 13, 13:00 UTCJul 13, 14:10 UTC1h 10m
2026-07-13 EJA333 - Jul 13, 10:50 UTCJul 13, 11:25 UTC35m
2026-07-11 EJA333 BED → RKD Jul 11, 13:50 UTCJul 11, 14:25 UTC35m
2026-07-10 EJA333 BOS → BED Jul 10, 20:45 UTCJul 10, 21:00 UTC15m
2026-07-10 EJA333 - Jul 10, 19:05 UTCJul 10, 19:35 UTC30m
2026-07-10 EJA333 - Jul 10, 16:30 UTCJul 10, 17:10 UTC40m
2026-07-10 EJA333 - Jul 10, 15:05 UTCJul 10, 15:25 UTC20m
2026-07-10 EJA333 IAD → ISP Jul 10, 11:00 UTCJul 10, 11:55 UTC55m
2026-07-09 EJA333 - Jul 9, 23:25 UTCJul 10, 01:00 UTC1h 35m
2026-07-09 EJA333 - Jul 9, 21:20 UTCJul 9, 22:30 UTC1h 10m
2026-07-09 EJA333 BNA → STL Jul 9, 18:00 UTCJul 9, 18:50 UTC50m
2026-07-09 N333QS - Jul 9, 14:15 UTCJul 9, 16:25 UTC2h 10m
2026-07-09 N333QS - Jul 9, 12:05 UTCJul 9, 12:40 UTC35m
2026-06-22 EJA333 - Jun 22, 22:24 UTCJun 23, 01:00 UTC2h 35m
2026-06-18 EJA333 - Jun 18, 00:10 UTCJun 18, 01:05 UTC55m
2026-06-17 EJA333 - Jun 17, 22:45 UTCJun 17, 23:15 UTC30m
2026-06-16 EJA333 - Jun 16, 13:04 UTCJun 16, 15:50 UTC2h 45m
2026-06-15 EJA333 BED → YUL Jun 15, 19:25 UTCJun 15, 20:04 UTC40m
2026-06-15 EJA333 BED → YUL Jun 15, 16:24 UTCJun 15, 18:25 UTC2h 0m
2026-06-15 EJA333 BED → YUL Jun 15, 13:34 UTCJun 15, 14:20 UTC45m
2026-06-15 EJA333 BED → YUL Jun 15, 11:30 UTCJun 15, 12:10 UTC40m
2026-06-15 EJA333 BED → YUL Jun 15, 10:05 UTCJun 15, 10:40 UTC35m
2026-06-13 EJA333 BED → YUL Jun 13, 19:10 UTCJun 13, 21:15 UTC2h 5m
2026-06-13 EJA333 BED → YUL Jun 13, 16:50 UTCJun 13, 18:40 UTC1h 50m
2026-06-12 EJA333 BED → YUL Jun 12, 18:25 UTCJun 12, 19:15 UTC50m
2026-06-12 EJA333 BED → YUL Jun 12, 15:30 UTCJun 12, 17:10 UTC1h 40m
2026-06-11 EJA333 BED → YUL Jun 11, 22:35 UTCJun 12, 02:45 UTC4h 11m
2026-06-11 EJA333 BED → YUL Jun 11, 20:30 UTCJun 11, 21:25 UTC55m
2026-06-11 EJA333 BED → YUL Jun 11, 15:10 UTCJun 11, 18:15 UTC3h 5m
2026-06-11 EJA333 BED → YUL Jun 11, 02:30 UTCJun 11, 07:40 UTC5h 10m
2026-06-10 EJA333 BED → YUL Jun 10, 23:15 UTCJun 11, 01:20 UTC2h 5m
2026-06-10 EJA333 BED → YUL Jun 10, 17:20 UTCJun 10, 18:10 UTC50m
2026-06-10 EJA333 BED → YUL Jun 10, 15:55 UTCJun 10, 16:40 UTC45m

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 N333QS page for operator, model, and routing details .

Mode-S A3A263 frequently asked

What is Mode-S code A3A263?
A3A263 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N333QS.
Where is Mode-S A3A263 registered?
Mode-S code A3A263 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 A3A263 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3A263, octal 50721143, decimal 10,723,939.
What flights does A3A263 operate?
Mode-S A3A263 has broadcast 2 distinct callsigns, including EJA333, N333QS.