Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE5E54

ICAO 24-bit transponder address

Hex
AE5E54
Octal
53457124
Decimal
11,427,412
No current signal · last broadcast 2d ago
Flights observed
3
Distinct callsigns
2
Country
-
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AE5E54.

Callsign history 2 distinct

Callsign Airline Flights Last seen
EAGLE31 - 2 2026-04-16
EAGLE32 - 1 2026-04-14

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-16 EAGLE31 - Apr 16, 23:20 UTCApr 17, 00:55 UTC1h 35m
2026-04-16 EAGLE31 - Apr 16, 21:45 UTCApr 16, 23:10 UTC1h 25m
2026-04-14 EAGLE32 - Apr 14, 16:50 UTCApr 14, 18:30 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.

Mode-S AE5E54 frequently asked

What is Mode-S code AE5E54?
AE5E54 is an ICAO 24-bit transponder address.
Is AE5E54 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5E54, octal 53457124, decimal 11,427,412.
What flights does AE5E54 operate?
Mode-S AE5E54 has broadcast 2 distinct callsigns, including EAGLE31, EAGLE32.