sensors Mode-S transponder

A2DDAC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N284JN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2DDAC
Octal
50556654
Decimal
10,673,580
Country
US
Tail
N284JN
Type
E75L
No current signal · last broadcast 1d ago
Flights observed
14
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A2DDAC.

Country allocation

The ICAO 24-bit address A2DDAC 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 6 distinct

Callsign Airline Flights Last seen
ENY4060 - 4 2026-04-13
ENY3537 - 4 2026-04-13
ENY4140 - 2 2026-04-13
ENY3709 Envoy Air 2 2026-04-13
ENY4137 - 1 2026-04-13
ENY3654 Envoy Air 1 2026-04-12

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-13 ENY4140 - Apr 13, 22:00 UTCApr 13, 23:25 UTC1h 25m
2026-04-13 ENY4140 - Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 ENY3537 - Apr 13, 17:25 UTCApr 13, 18:40 UTC1h 15m
2026-04-13 ENY3537 - Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 ENY3537 - Apr 13, 15:50 UTCApr 13, 16:25 UTC35m
2026-04-13 ENY3537 - Apr 13, 15:13 UTCApr 13, 16:30 UTC1h 17m
2026-04-13 ENY4060 - Apr 13, 12:20 UTCApr 13, 13:30 UTC1h 10m
2026-04-13 ENY4060 - Apr 13, 11:55 UTCApr 13, 13:30 UTC1h 35m
2026-04-13 ENY4060 - Apr 13, 11:16 UTCApr 13, 13:48 UTC2h 32m
2026-04-13 ENY4060 - Apr 13, 11:05 UTCApr 13, 13:20 UTC2h 15m
2026-04-13 ENY4137 - Apr 13, 01:55 UTCApr 13, 03:50 UTC1h 55m
2026-04-13 ENY3709 STS → PHX Apr 13, 00:20 UTCApr 13, 00:45 UTC25m
2026-04-12 ENY3709 STS → PHX Apr 12, 23:55 UTCApr 13, 00:45 UTC50m
2026-04-12 ENY3654 FAR → ORD Apr 12, 18:20 UTCApr 12, 20:00 UTC1h 40m

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 N284JN page for operator, model, and routing details .

Mode-S A2DDAC frequently asked

What is Mode-S code A2DDAC?
A2DDAC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N284JN.
Where is Mode-S A2DDAC registered?
Mode-S code A2DDAC 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 A2DDAC broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2DDAC, octal 50556654, decimal 10,673,580.
What flights does A2DDAC operate?
Mode-S A2DDAC has broadcast 6 distinct callsigns, including ENY4060, ENY3537, ENY4140, ENY3709, ENY4137.