Apparatus

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sensors Mode-S transponder

AE50CF

ICAO 24-bit transponder address

Currently assigned to 10-20271 · SIKORSKY UH-60 Black Hawk

Hex
AE50CF
Octal
53450317
Decimal
11,423,951
Tail
10-20271
Type
H60
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE50CF.

Callsign history 2 distinct

Callsign Airline Flights Last seen
WAKE61 - 3 2026-04-19
WAKE60 - 1 2026-04-19

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-19 WAKE61 - Apr 19, 06:55 UTCApr 19, 07:05 UTC10m
2026-04-19 WAKE60 - Apr 19, 05:05 UTCApr 19, 06:10 UTC1h 5m
2026-04-17 WAKE61 - Apr 17, 07:40 UTCApr 17, 07:50 UTC10m
2026-04-16 WAKE61 - Apr 16, 23:45 UTCApr 17, 00:15 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 10-20271 page for operator, model, and routing details .

Mode-S AE50CF frequently asked

What is Mode-S code AE50CF?
AE50CF is an ICAO 24-bit transponder address. Assigned to 10-20271.
Is AE50CF broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE50CF, octal 53450317, decimal 11,423,951.
What flights does AE50CF operate?
Mode-S AE50CF has broadcast 2 distinct callsigns, including WAKE61, WAKE60.