sensors Mode-S transponder

A2D939

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N283B · BOMBARDIER BD-100 Challenger 300 · operated by GPS 3 LLC, NATURAL 9 AVIATION LLC

Hex
A2D939
Octal
50554471
Decimal
10,672,441
Country
US
Tail
N283B
Type
CL30
No current signal · last broadcast 14h ago
Flights observed
63
Distinct callsigns
1
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A2D939.

Country allocation

The ICAO 24-bit address A2D939 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 1 distinct

Callsign Airline Flights Last seen
JRE283 - 63 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JRE283 - May 29, 21:10 UTCMay 29, 22:10 UTC1h 0m
2026-05-29 JRE283 - May 29, 15:15 UTCMay 29, 18:15 UTC3h 1m
2026-05-28 JRE283 - May 28, 20:00 UTCMay 28, 20:10 UTC10m
2026-05-28 JRE283 - May 28, 16:25 UTCMay 28, 19:00 UTC2h 35m
2026-05-28 JRE283 - May 28, 12:35 UTCMay 28, 14:55 UTC2h 20m
2026-05-27 JRE283 - May 27, 20:35 UTCMay 28, 00:20 UTC3h 45m
2026-05-27 JRE283 - May 27, 16:40 UTCMay 27, 18:55 UTC2h 15m
2026-05-26 JRE283 - May 26, 18:30 UTCMay 26, 22:20 UTC3h 50m
2026-05-26 JRE283 - May 26, 13:04 UTCMay 26, 15:09 UTC2h 5m
2026-05-25 JRE283 - May 25, 18:35 UTCMay 25, 21:35 UTC2h 59m
2026-05-25 JRE283 LAS → SCF May 25, 16:30 UTCMay 25, 17:15 UTC45m
2026-05-20 JRE283 - May 20, 21:45 UTCMay 21, 02:20 UTC4h 35m
2026-05-10 JRE283 - May 10, 02:00 UTCMay 10, 04:00 UTC2h 0m
2026-05-09 JRE283 - May 9, 22:00 UTCMay 10, 01:00 UTC3h 0m
2026-05-09 JRE283 - May 9, 20:10 UTCMay 9, 20:25 UTC15m
2026-05-09 JRE283 - May 9, 17:40 UTCMay 9, 19:05 UTC1h 25m
2026-05-09 JRE283 - May 9, 02:15 UTCMay 9, 03:40 UTC1h 25m
2026-05-08 JRE283 - May 8, 23:40 UTCMay 9, 01:20 UTC1h 40m
2026-05-08 JRE283 - May 8, 21:10 UTCMay 8, 21:35 UTC25m
2026-05-07 JRE283 VGT → BUR May 7, 21:00 UTCMay 7, 21:55 UTC55m
2026-05-07 JRE283 - May 7, 16:15 UTCMay 7, 20:05 UTC3h 50m
2026-05-07 JRE283 - May 7, 12:35 UTCMay 7, 14:35 UTC2h 0m
2026-05-06 JRE283 - May 6, 19:50 UTCMay 6, 22:05 UTC2h 15m
2026-05-06 JRE283 - May 6, 18:35 UTCMay 6, 18:50 UTC15m
2026-05-06 JRE283 - May 6, 15:55 UTCMay 6, 17:35 UTC1h 39m
2026-05-06 JRE283 - May 6, 14:00 UTCMay 6, 14:10 UTC10m
2026-05-05 JRE283 - May 5, 21:40 UTCMay 6, 00:01 UTC2h 20m
2026-05-05 JRE283 - May 5, 13:15 UTCMay 5, 13:45 UTC30m
2026-05-04 JRE283 IAD → AUS May 4, 12:20 UTCMay 4, 15:25 UTC3h 5m
2026-05-03 JRE283 - May 3, 20:45 UTCMay 3, 21:24 UTC40m
2026-05-03 JRE283 - May 3, 18:40 UTCMay 3, 19:30 UTC50m
2026-05-03 JRE283 - May 3, 15:25 UTCMay 3, 17:05 UTC1h 40m
2026-05-01 JRE283 - May 1, 18:55 UTCMay 1, 20:55 UTC2h 0m
2026-05-01 JRE283 - May 1, 16:00 UTCMay 1, 17:50 UTC1h 50m
2026-05-01 JRE283 - May 1, 15:00 UTCMay 1, 15:15 UTC15m
2026-04-30 JRE283 - Apr 30, 22:05 UTCApr 30, 23:15 UTC1h 10m
2026-04-30 JRE283 - Apr 30, 17:00 UTCApr 30, 20:50 UTC3h 50m
2026-04-29 JRE283 - Apr 29, 22:45 UTCApr 29, 23:00 UTC15m
2026-04-29 JRE283 - Apr 29, 14:40 UTCApr 29, 20:50 UTC6h 10m
2026-04-28 JRE283 - Apr 28, 20:25 UTCApr 28, 23:05 UTC2h 40m
2026-04-26 JRE283 - Apr 26, 21:55 UTCApr 27, 00:15 UTC2h 20m
2026-04-25 JRE283 - Apr 25, 12:30 UTCApr 25, 14:05 UTC1h 35m
2026-04-24 JRE283 - Apr 24, 21:55 UTCApr 24, 22:20 UTC25m
2026-04-24 JRE283 - Apr 24, 16:35 UTCApr 24, 21:05 UTC4h 30m
2026-04-23 JRE283 - Apr 23, 22:05 UTCApr 23, 22:50 UTC45m
2026-04-23 JRE283 - Apr 23, 15:10 UTCApr 23, 21:05 UTC5h 54m
2026-04-22 JRE283 - Apr 22, 21:40 UTCApr 22, 22:10 UTC30m
2026-04-22 JRE283 - Apr 22, 18:10 UTCApr 22, 20:05 UTC1h 55m
2026-04-21 JRE283 ORL → AUS Apr 21, 21:15 UTCApr 21, 23:50 UTC2h 35m
2026-04-21 JRE283 - Apr 21, 19:35 UTCApr 21, 20:20 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 N283B page for operator, model, and routing details .

Mode-S A2D939 frequently asked

What is Mode-S code A2D939?
A2D939 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N283B.
Where is Mode-S A2D939 registered?
Mode-S code A2D939 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 A2D939 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2D939, octal 50554471, decimal 10,672,441.
What flights does A2D939 operate?
Mode-S A2D939 has broadcast 1 distinct callsign, including JRE283.