sensors Mode-S transponder

A384D5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N326CJ · EMBRAER ERJ-170-100 · operated by AMERICAN AIRLINES INC

Hex
A384D5
Octal
50702325
Decimal
10,716,373
Country
US
Tail
N326CJ
Type
E170
No current signal · last broadcast 21h ago
Flights observed
8
Distinct callsigns
5
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A384D5.

Country allocation

The ICAO 24-bit address A384D5 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 5 distinct

Callsign Airline Flights Last seen
ENY4150 - 4 2026-04-13
ENY4212 - 1 2026-04-12
ENY3656 - 1 2026-04-13
ENY3627 Envoy Air 1 2026-04-12
ENY3400 - 1 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 ENY3400 - Apr 14, 05:15 UTCApr 14, 06:05 UTC50m
2026-04-13 ENY4150 - Apr 13, 20:15 UTCApr 13, 22:25 UTC2h 10m
2026-04-13 ENY4150 - Apr 13, 16:15 UTCApr 13, 17:25 UTC1h 10m
2026-04-13 ENY4150 - Apr 13, 15:50 UTCApr 13, 17:25 UTC1h 35m
2026-04-13 ENY4150 - Apr 13, 15:41 UTCApr 13, 17:36 UTC1h 55m
2026-04-13 ENY3656 - Apr 13, 12:33 UTCApr 13, 14:03 UTC1h 30m
2026-04-12 ENY3627 DCA → LIT Apr 12, 23:55 UTCApr 13, 00:05 UTC10m
2026-04-12 ENY4212 - Apr 12, 18:45 UTCApr 12, 20:15 UTC1h 30m

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 N326CJ page for operator, model, and routing details .

Mode-S A384D5 frequently asked

What is Mode-S code A384D5?
A384D5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N326CJ.
Where is Mode-S A384D5 registered?
Mode-S code A384D5 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 A384D5 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A384D5, octal 50702325, decimal 10,716,373.
What flights does A384D5 operate?
Mode-S A384D5 has broadcast 5 distinct callsigns, including ENY4150, ENY4212, ENY3656, ENY3627, ENY3400.