Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE74A6

ICAO 24-bit transponder address

Currently assigned to 22-21218 · Sikorsky UH-60M Black Hawk

Hex
AE74A6
Octal
53472246
Decimal
11,433,126
Tail
22-21218
Type
H60
No current signal · last broadcast 1d ago
Flights observed
3
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE74A6.

Callsign history 1 distinct

Callsign Airline Flights Last seen
G21218 - 3 2026-04-13

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-13 G21218 - Apr 13, 20:20 UTCApr 13, 21:00 UTC40m
2026-04-13 G21218 - Apr 13, 16:40 UTCApr 13, 17:00 UTC20m
2026-04-13 G21218 - Apr 13, 15:35 UTCApr 13, 15:45 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 22-21218 page for operator, model, and routing details .

Mode-S AE74A6 frequently asked

What is Mode-S code AE74A6?
AE74A6 is an ICAO 24-bit transponder address. Assigned to 22-21218.
Is AE74A6 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 AE74A6, octal 53472246, decimal 11,433,126.
What flights does AE74A6 operate?
Mode-S AE74A6 has broadcast 1 distinct callsign, including G21218.