Mode-S AE6917 · Transponder Hex for 18-5919

Q: What is Mode-S code AE6917?

AE6917 is an ICAO 24-bit transponder address. Assigned to 18-5919 .

Last known position

Most recent position reported by Mode-S AE6917.

Callsign history 2 distinct

Callsign	Airline	Flights	Last seen
DERBY21	-	3	2026-04-18
DERBY22	-	1	2026-04-17

Recent flights last 4

Date	Flight	Route	Takeoff	Landing	Duration
2026-04-18	DERBY21	-	Apr 18, 20:55 UTC	Apr 18, 21:50 UTC	55m
2026-04-17	DERBY22	-	Apr 17, 17:35 UTC	Apr 17, 19:00 UTC	1h 25m
2026-04-16	DERBY21	-	Apr 16, 17:15 UTC	Apr 16, 19:00 UTC	1h 45m
2026-04-15	DERBY21	-	Apr 15, 17:05 UTC	Apr 15, 18:00 UTC	55m

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 18-5919 page for operator, model, and routing details .

Mode-S AE6917 frequently asked

What is Mode-S code AE6917?

AE6917 is an ICAO 24-bit transponder address. Assigned to 18-5919.

Is AE6917 broadcasting right now?

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

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

The same 24-bit identifier expressed in different bases: hex AE6917, octal 53464427, decimal 11,430,167.

What flights does AE6917 operate?

Mode-S AE6917 has broadcast 2 distinct callsigns, including DERBY21, DERBY22.