Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE4EEF

ICAO 24-bit transponder address

Currently assigned to 10-0056 · BELL-BOEING V-22 Osprey

Hex
AE4EEF
Octal
53447357
Decimal
11,423,471
Tail
10-0056
Type
V22
No current signal · last broadcast 9d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S AE4EEF.

Callsign history 2 distinct

Callsign Airline Flights Last seen
FURY43 - 2 2026-05-20
00000000 - 2 2026-07-16

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-07-16 00000000 MHZ → MHZ Jul 16, 20:15 UTCJul 16, 20:19 UTC5m
2026-07-16 00000000 - Jul 16, 14:55 UTCJul 16, 16:00 UTC1h 5m
2026-05-20 FURY43 - May 20, 19:45 UTCMay 20, 21:10 UTC1h 25m
2026-05-20 FURY43 - May 20, 19:00 UTCMay 20, 19:10 UTC10m

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 10-0056 page for operator, model, and routing details .

Mode-S AE4EEF frequently asked

What is Mode-S code AE4EEF?
AE4EEF is an ICAO 24-bit transponder address. Assigned to 10-0056.
Is AE4EEF broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4EEF, octal 53447357, decimal 11,423,471.
What flights does AE4EEF operate?
Mode-S AE4EEF has broadcast 2 distinct callsigns, including FURY43, 00000000.