sensors Mode-S transponder

AE6498

ICAO 24-bit transponder address

Currently assigned to 19-21070 · SIKORSKY UH-60 Black Hawk

Hex
AE6498
Octal
53462230
Decimal
11,429,016
Tail
19-21070
Type
H60
No current signal · last broadcast 2d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AE6498.

Callsign history 2 distinct

Callsign Airline Flights Last seen
CARD92 - 2 2026-04-17
CARD78 - 2 2026-04-16

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-17 CARD92 - Apr 17, 01:20 UTCApr 17, 01:40 UTC20m
2026-04-17 CARD92 - Apr 17, 00:10 UTCApr 17, 01:15 UTC1h 5m
2026-04-16 CARD78 - Apr 16, 11:09 UTCApr 16, 11:25 UTC15m
2026-04-16 CARD78 - Apr 16, 10:25 UTCApr 16, 11:04 UTC40m

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 19-21070 page for operator, model, and routing details .

Mode-S AE6498 frequently asked

What is Mode-S code AE6498?
AE6498 is an ICAO 24-bit transponder address. Assigned to 19-21070.
Is AE6498 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE6498, octal 53462230, decimal 11,429,016.
What flights does AE6498 operate?
Mode-S AE6498 has broadcast 2 distinct callsigns, including CARD92, CARD78.