Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE5D8D

ICAO 24-bit transponder address

Currently assigned to 16-20899 · SIKORSKY UH-60 Black Hawk

Hex
AE5D8D
Octal
53456615
Decimal
11,427,213
Tail
16-20899
Type
H60
No current signal · last broadcast 11h ago
Flights observed
4
Distinct callsigns
3
Country
-
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S AE5D8D.

Callsign history 3 distinct

Callsign Airline Flights Last seen
VICE44 - 2 2026-05-21
VICE46 - 1 2026-05-19
VICE12 - 1 2026-04-28

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-05-21 VICE44 CAK → LCK May 21, 01:00 UTCMay 21, 02:00 UTC1h 0m
2026-05-20 VICE44 LCK → CAK May 20, 22:50 UTCMay 20, 23:50 UTC1h 0m
2026-05-19 VICE46 - May 19, 18:55 UTCMay 19, 19:50 UTC55m
2026-04-28 VICE12 - Apr 28, 19:30 UTCApr 28, 20:00 UTC30m

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 16-20899 page for operator, model, and routing details .

Mode-S AE5D8D frequently asked

What is Mode-S code AE5D8D?
AE5D8D is an ICAO 24-bit transponder address. Assigned to 16-20899.
Is AE5D8D broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5D8D, octal 53456615, decimal 11,427,213.
What flights does AE5D8D operate?
Mode-S AE5D8D has broadcast 3 distinct callsigns, including VICE44, VICE46, VICE12.