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 15d ago
Flights observed
137
Distinct callsigns
1
Country
US
Last broadcast
15d 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 - 137 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 JRE283 - Jun 29, 17:24 UTCJun 29, 18:30 UTC1h 5m
2026-06-29 JRE283 - Jun 29, 14:39 UTCJun 29, 16:00 UTC1h 20m
2026-06-29 JRE283 - Jun 29, 12:49 UTCJun 29, 13:04 UTC15m
2026-06-29 JRE283 - Jun 29, 10:40 UTCJun 29, 11:20 UTC40m
2026-06-28 JRE283 - Jun 28, 14:54 UTCJun 28, 18:49 UTC3h 55m
2026-06-27 JRE283 - Jun 27, 18:20 UTCJun 28, 18:14 UTC23h 55m
2026-06-27 JRE283 - Jun 27, 14:39 UTCJun 27, 18:35 UTC3h 55m
2026-06-27 JRE283 PIE → SRQ Jun 27, 12:29 UTCJun 27, 12:45 UTC15m
2026-06-26 JRE283 - Jun 26, 21:15 UTCJun 26, 22:44 UTC1h 30m
2026-06-26 JRE283 - Jun 26, 18:49 UTCJun 26, 20:15 UTC1h 25m
2026-06-26 JRE283 - Jun 26, 16:20 UTCJun 26, 16:49 UTC30m
2026-06-26 JRE283 - Jun 26, 13:59 UTCJun 26, 16:14 UTC2h 15m
2026-06-25 JRE283 - Jun 25, 22:39 UTCJun 25, 23:34 UTC55m
2026-06-25 JRE283 - Jun 25, 17:25 UTCJun 25, 21:29 UTC4h 5m
2026-06-25 JRE283 - Jun 25, 13:45 UTCJun 25, 16:20 UTC2h 35m
2026-06-24 JRE283 - Jun 24, 18:39 UTCJun 24, 23:59 UTC5h 20m
2026-06-24 JRE283 - Jun 24, 17:05 UTCJun 24, 17:55 UTC50m
2026-06-24 JRE283 PIE → BNA Jun 24, 13:24 UTCJun 24, 14:55 UTC1h 30m
2026-06-23 JRE283 TMB → PIE Jun 23, 20:59 UTCJun 23, 21:49 UTC50m
2026-06-23 JRE283 ORL → TMB Jun 23, 18:10 UTCJun 23, 18:55 UTC45m
2026-06-23 JRE283 - Jun 23, 17:15 UTCJun 23, 17:30 UTC15m
2026-06-23 JRE283 - Jun 23, 15:15 UTCJun 23, 16:39 UTC1h 25m
2026-06-23 JRE283 - Jun 23, 13:09 UTCJun 23, 13:55 UTC45m
2026-06-22 JRE283 - Jun 22, 16:54 UTCJun 22, 19:00 UTC2h 5m
2026-06-21 JRE283 - Jun 21, 23:59 UTCJun 22, 01:29 UTC1h 30m
2026-06-21 JRE283 - Jun 21, 19:14 UTCJun 21, 22:34 UTC3h 20m
2026-06-21 JRE283 - Jun 21, 13:54 UTCJun 21, 15:25 UTC1h 30m
2026-06-20 JRE283 - Jun 20, 20:14 UTCJun 21, 01:25 UTC5h 10m
2026-06-20 JRE283 - Jun 20, 16:24 UTCJun 20, 18:04 UTC1h 40m
2026-06-19 JRE283 - Jun 19, 18:54 UTCJun 19, 20:14 UTC1h 20m
2026-06-19 JRE283 - Jun 19, 15:44 UTCJun 19, 17:49 UTC2h 5m
2026-06-18 JRE283 - Jun 18, 16:20 UTCJun 18, 21:40 UTC5h 20m
2026-06-17 JRE283 - Jun 17, 21:35 UTCJun 17, 22:50 UTC1h 15m
2026-06-17 JRE283 - Jun 17, 14:00 UTCJun 17, 17:50 UTC3h 50m
2026-06-16 JRE283 - Jun 16, 21:50 UTCJun 16, 22:50 UTC1h 0m
2026-06-16 JRE283 - Jun 16, 16:25 UTCJun 16, 20:40 UTC4h 16m
2026-06-16 JRE283 - Jun 16, 00:40 UTCJun 16, 02:15 UTC1h 35m
2026-06-15 JRE283 - Jun 15, 19:50 UTCJun 15, 20:20 UTC30m
2026-06-15 JRE283 - Jun 15, 14:20 UTCJun 15, 18:50 UTC4h 30m
2026-06-14 JRE283 - Jun 14, 21:25 UTCJun 14, 23:00 UTC1h 35m
2026-06-14 JRE283 - Jun 14, 16:30 UTCJun 14, 20:35 UTC4h 5m
2026-06-13 JRE283 - Jun 13, 19:50 UTCJun 13, 21:55 UTC2h 5m
2026-06-13 JRE283 - Jun 13, 14:05 UTCJun 13, 18:45 UTC4h 40m
2026-06-12 JRE283 - Jun 12, 23:55 UTCJun 13, 01:35 UTC1h 40m
2026-06-12 JRE283 - Jun 12, 19:10 UTCJun 12, 22:55 UTC3h 45m
2026-06-12 JRE283 - Jun 12, 05:35 UTCJun 12, 06:15 UTC40m
2026-06-12 JRE283 - Jun 12, 00:20 UTCJun 12, 04:35 UTC4h 15m
2026-06-11 JRE283 - Jun 11, 20:20 UTCJun 11, 21:50 UTC1h 30m
2026-06-10 JRE283 - Jun 10, 19:10 UTCJun 10, 22:10 UTC3h 0m
2026-06-09 JRE283 - Jun 9, 22:05 UTCJun 9, 23:20 UTC1h 15m

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 15d 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.