sensors Mode-S transponder

A2DA59

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N283NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2DA59
Octal
50555131
Decimal
10,672,729
Country
US
Tail
N283NN
Type
E75L
Broadcasting now · callsign ENY4137 · 33,000 ft
Flights observed
10
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Current position

A2DA59 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2DA59 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
ENY3867 - 3 2026-04-13
ENY4131 - 2 2026-04-13
ENY4010 - 2 2026-04-13
ENY4134 Envoy Air 1 2026-04-12
ENY3810 - 1 2026-04-13
ENY3401 - 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 ENY4131 - Apr 13, 23:20 UTCApr 13, 23:45 UTC25m
2026-04-13 ENY4131 - Apr 13, 21:23 UTCApr 13, 22:25 UTC1h 2m
2026-04-13 ENY3867 - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 ENY3867 - Apr 13, 18:50 UTCApr 13, 20:07 UTC1h 17m
2026-04-13 ENY3867 - Apr 13, 18:52 UTCApr 13, 20:06 UTC1h 14m
2026-04-13 ENY3401 - Apr 13, 16:25 UTCApr 13, 17:49 UTC1h 24m
2026-04-13 ENY3810 MTY → DFW Apr 13, 13:35 UTCApr 13, 14:55 UTC1h 20m
2026-04-13 ENY4010 DFW → MTY Apr 13, 00:28 UTCApr 13, 01:55 UTC1h 27m
2026-04-13 ENY4010 DFW → MTY Apr 13, 00:35 UTCApr 13, 02:06 UTC1h 31m
2026-04-12 ENY4134 SYR → ORD Apr 12, 17:45 UTCApr 12, 19:40 UTC1h 55m

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 N283NN page for operator, model, and routing details .

Mode-S A2DA59 frequently asked

What is Mode-S code A2DA59?
A2DA59 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N283NN.
Where is Mode-S A2DA59 registered?
Mode-S code A2DA59 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 A2DA59 broadcasting right now?
Yes. Mode-S A2DA59 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2DA59, octal 50555131, decimal 10,672,729.
What flights does A2DA59 operate?
Mode-S A2DA59 has broadcast 6 distinct callsigns, including ENY3867, ENY4131, ENY4010, ENY4134, ENY3810.