Mode-S AE173E · Transponder Hex for 06-3844

Q: What is Mode-S code AE173E?

AE173E is an ICAO 24-bit transponder address. Assigned to 06-3844 .

Last known position

Most recent position reported by Mode-S AE173E.

Callsign history 3 distinct

Callsign	Airline	Flights	Last seen
MITCH51	-	1	2026-04-30
FLAT62	-	1	2026-06-23
BIGCAT4	-	1	2026-04-30

Recent flights last 3

Date	Flight	Route	Takeoff	Landing	Duration
2026-06-23	FLAT62	-	Jun 23, 15:59 UTC	Jun 23, 16:44 UTC	45m
2026-04-30	BIGCAT4	-	Apr 30, 16:50 UTC	Apr 30, 17:20 UTC	30m
2026-04-30	MITCH51	-	Apr 30, 13:35 UTC	Apr 30, 13:45 UTC	10m

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 06-3844 page for operator, model, and routing details .

Mode-S AE173E frequently asked

What is Mode-S code AE173E?

AE173E is an ICAO 24-bit transponder address. Assigned to 06-3844.

Is AE173E broadcasting right now?

No active broadcast right now. Last signal was 21d ago.

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

The same 24-bit identifier expressed in different bases: hex AE173E, octal 53413476, decimal 11,409,214.

What flights does AE173E operate?

Mode-S AE173E has broadcast 3 distinct callsigns, including MITCH51, FLAT62, BIGCAT4.