Apparatus

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sensors Mode-S transponder

AE4B74

ICAO 24-bit transponder address

Currently assigned to 162522 · SIKORSKY CH-53 Super Stallion

Hex
AE4B74
Octal
53445564
Decimal
11,422,580
Tail
162522
Type
H53S
No current signal · last broadcast 8d ago
Flights observed
23
Distinct callsigns
3
Country
-
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S AE4B74.

Callsign history 3 distinct

Callsign Airline Flights Last seen
WRHRS52 - 17 2026-04-17
WRHRS62 - 5 2026-05-21
WRHRSE62 - 1 2026-04-12

Recent flights last 23

DateFlightRouteTakeoffLandingDuration
2026-05-21 WRHRS62 - May 21, 21:30 UTCMay 21, 23:15 UTC1h 45m
2026-05-21 WRHRS62 - May 21, 20:30 UTCMay 21, 21:25 UTC55m
2026-05-21 WRHRS62 NKX → NKX May 21, 20:00 UTCMay 21, 20:10 UTC10m
2026-04-30 WRHRS62 - Apr 30, 06:20 UTCApr 30, 06:45 UTC25m
2026-04-28 WRHRS62 - Apr 28, 01:35 UTCApr 28, 01:55 UTC20m
2026-04-17 WRHRS52 - Apr 17, 07:20 UTCApr 17, 07:30 UTC10m
2026-04-17 WRHRS52 - Apr 17, 06:55 UTCApr 17, 07:15 UTC20m
2026-04-17 WRHRS52 - Apr 17, 06:05 UTCApr 17, 06:20 UTC15m
2026-04-17 WRHRS52 NKX → NKX Apr 17, 05:20 UTCApr 17, 05:45 UTC25m
2026-04-17 WRHRS52 NKX → NKX Apr 17, 04:35 UTCApr 17, 05:15 UTC40m
2026-04-17 WRHRS52 NKX → NKX Apr 17, 04:10 UTCApr 17, 04:15 UTC5m
2026-04-17 WRHRS52 - Apr 17, 03:20 UTCApr 17, 04:00 UTC40m
2026-04-17 WRHRS52 - Apr 17, 00:50 UTCApr 17, 01:04 UTC15m
2026-04-16 WRHRS52 - Apr 16, 23:20 UTCApr 16, 23:30 UTC10m
2026-04-16 WRHRS52 - Apr 16, 23:00 UTCApr 16, 23:10 UTC10m
2026-04-16 WRHRS52 - Apr 16, 21:14 UTCApr 16, 22:20 UTC1h 5m
2026-04-16 WRHRS52 - Apr 16, 20:55 UTCApr 16, 21:10 UTC15m
2026-04-16 WRHRS52 NKX → NKX Apr 16, 20:40 UTCApr 16, 20:45 UTC5m
2026-04-16 WRHRS52 - Apr 16, 19:15 UTCApr 16, 19:35 UTC20m
2026-04-16 WRHRS52 - Apr 16, 18:50 UTCApr 16, 19:05 UTC15m
2026-04-16 WRHRS52 - Apr 16, 17:44 UTCApr 16, 18:15 UTC30m
2026-04-16 WRHRS52 - Apr 16, 16:45 UTCApr 16, 17:00 UTC15m
2026-04-12 WRHRSE62 - Apr 12, 23:55 UTCApr 13, 00:20 UTC25m

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 162522 page for operator, model, and routing details .

Mode-S AE4B74 frequently asked

What is Mode-S code AE4B74?
AE4B74 is an ICAO 24-bit transponder address. Assigned to 162522.
Is AE4B74 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4B74, octal 53445564, decimal 11,422,580.
What flights does AE4B74 operate?
Mode-S AE4B74 has broadcast 3 distinct callsigns, including WRHRS52, WRHRS62, WRHRSE62.