sensors Mode-S transponder

A372E0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N321JS · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A372E0
Octal
50671340
Decimal
10,711,776
Country
US
Tail
N321JS
Type
E75L
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A372E0.

Country allocation

The ICAO 24-bit address A372E0 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
ENY3464 - 4 2026-04-13
ENY3472 - 2 2026-04-13
ENY4157 - 1 2026-04-12
ENY4005 - 1 2026-04-13
ENY3965 - 1 2026-04-13
ENY3580 - 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 ENY3472 - Apr 13, 20:55 UTCApr 13, 22:40 UTC1h 45m
2026-04-13 ENY3472 DFW → BMI Apr 13, 18:30 UTCApr 13, 20:10 UTC1h 40m
2026-04-13 ENY3464 - Apr 13, 16:15 UTCApr 13, 17:05 UTC50m
2026-04-13 ENY3464 - Apr 13, 15:50 UTCApr 13, 17:05 UTC1h 15m
2026-04-13 ENY3464 - Apr 13, 15:10 UTCApr 13, 16:15 UTC1h 5m
2026-04-13 ENY3464 - Apr 13, 12:33 UTCApr 13, 14:19 UTC1h 46m
2026-04-13 ENY4005 - Apr 13, 10:12 UTCApr 13, 11:03 UTC51m
2026-04-13 ENY3965 HWO → XNA Apr 13, 01:20 UTCApr 13, 03:45 UTC2h 25m
2026-04-12 ENY4157 - Apr 12, 19:45 UTCApr 12, 20:15 UTC30m
2026-04-12 ENY3580 - Apr 12, 17:36 UTCApr 12, 18:06 UTC30m

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 N321JS page for operator, model, and routing details .

Mode-S A372E0 frequently asked

What is Mode-S code A372E0?
A372E0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N321JS.
Where is Mode-S A372E0 registered?
Mode-S code A372E0 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 A372E0 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 A372E0, octal 50671340, decimal 10,711,776.
What flights does A372E0 operate?
Mode-S A372E0 has broadcast 6 distinct callsigns, including ENY3464, ENY3472, ENY4157, ENY4005, ENY3965.