Mode-S AE4E5C · Transponder Hex for 168229

Q: What is Mode-S code AE4E5C?

AE4E5C is an ICAO 24-bit transponder address. Assigned to 168229 .

Last known position

Most recent position reported by Mode-S AE4E5C.

Callsign history 2 distinct

Callsign	Airline	Flights	Last seen
LEGCY12	-	3	2026-04-13
LEGCY21	-	1	2026-04-17

Recent flights last 4

Date	Flight	Route	Takeoff	Landing	Duration
2026-04-17	LEGCY21	-	Apr 17, 02:20 UTC	Apr 17, 02:35 UTC	15m
2026-04-13	LEGCY12	-	Apr 13, 16:15 UTC	Apr 13, 16:45 UTC	30m
2026-04-13	LEGCY12	-	Apr 13, 15:50 UTC	Apr 13, 16:45 UTC	55m
2026-04-13	LEGCY12	-	Apr 13, 14:55 UTC	Apr 13, 16:15 UTC	1h 20m

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 168229 page for operator, model, and routing details .

Mode-S AE4E5C frequently asked

What is Mode-S code AE4E5C?

AE4E5C is an ICAO 24-bit transponder address. Assigned to 168229.

Is AE4E5C broadcasting right now?

No active broadcast right now. Last signal was 4d ago.

Hex, octal, and decimal Mode-S codes: what's the difference?

The same 24-bit identifier expressed in different bases: hex AE4E5C, octal 53447134, decimal 11,423,324.

What flights does AE4E5C operate?

Mode-S AE4E5C has broadcast 2 distinct callsigns, including LEGCY12, LEGCY21.