Apparatus

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sensors Mode-S transponder

AE6209

ICAO 24-bit transponder address

Currently assigned to 18-20997 · SIKORSKY UH-60 Black Hawk

Hex
AE6209
Octal
53461011
Decimal
11,428,361
Tail
18-20997
Type
H60
No current signal · last broadcast 8h ago
Flights observed
26
Distinct callsigns
10
Country
-
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S AE6209.

Callsign history 10 distinct

Callsign Airline Flights Last seen
CARD10 - 7 2026-06-23
CARD20 - 4 2026-06-04
CARD27 - 3 2026-07-13
CARD16 - 3 2026-05-19
CARD38 - 2 2026-07-01
CARD33 - 2 2026-05-13
CARD31 - 2 2026-05-15
CD31 - 1 2026-05-26
CARD11 - 1 2026-07-14
CARD - 1 2026-06-23

Recent flights last 26

DateFlightRouteTakeoffLandingDuration
2026-07-14 CARD11 SSN → SSN Jul 14, 06:35 UTCJul 14, 08:20 UTC1h 45m
2026-07-13 CARD27 - Jul 13, 11:55 UTCJul 13, 12:10 UTC15m
2026-07-13 CARD27 - Jul 13, 10:25 UTCJul 13, 11:00 UTC35m
2026-07-13 CARD27 - Jul 13, 09:35 UTCJul 13, 10:20 UTC45m
2026-07-01 CARD38 - Jul 1, 03:25 UTCJul 1, 03:40 UTC15m
2026-06-28 CARD38 - Jun 28, 11:35 UTCJun 28, 11:55 UTC20m
2026-06-23 CARD10 - Jun 23, 11:54 UTCJun 23, 12:05 UTC10m
2026-06-23 CARD - Jun 23, 08:09 UTCJun 23, 08:25 UTC15m
2026-06-09 CARD10 - Jun 9, 11:20 UTCJun 9, 13:00 UTC1h 40m
2026-06-09 CARD10 - Jun 9, 10:25 UTCJun 9, 11:00 UTC35m
2026-06-09 CARD10 - Jun 9, 09:05 UTCJun 9, 10:20 UTC1h 15m
2026-06-04 CARD20 - Jun 4, 11:15 UTCJun 4, 11:55 UTC40m
2026-06-04 CARD20 - Jun 4, 10:20 UTCJun 4, 10:55 UTC35m
2026-06-04 CARD20 - Jun 4, 08:55 UTCJun 4, 10:00 UTC1h 5m
2026-06-04 CARD20 SSN → SSN Jun 4, 08:40 UTCJun 4, 08:45 UTC5m
2026-05-26 CD31 SSN → SSN May 26, 23:45 UTCMay 27, 01:09 UTC1h 25m
2026-05-19 CARD16 - May 19, 04:00 UTCMay 19, 04:20 UTC20m
2026-05-19 CARD16 - May 19, 03:00 UTCMay 19, 03:25 UTC25m
2026-05-19 CARD16 SSN → SSN May 19, 01:55 UTCMay 19, 02:05 UTC10m
2026-05-15 CARD31 - May 15, 03:25 UTCMay 15, 04:40 UTC1h 15m
2026-05-15 CARD31 - May 15, 01:45 UTCMay 15, 02:45 UTC1h 0m
2026-05-13 CARD33 - May 13, 12:05 UTCMay 13, 12:15 UTC10m
2026-05-13 CARD33 - May 13, 07:35 UTCMay 13, 07:45 UTC10m
2026-04-14 CARD10 - Apr 14, 12:30 UTCApr 14, 12:45 UTC15m
2026-04-14 CARD10 - Apr 14, 10:55 UTCApr 14, 11:10 UTC15m
2026-04-14 CARD10 - Apr 14, 10:10 UTCApr 14, 10:30 UTC20m

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 18-20997 page for operator, model, and routing details .

Mode-S AE6209 frequently asked

What is Mode-S code AE6209?
AE6209 is an ICAO 24-bit transponder address. Assigned to 18-20997.
Is AE6209 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE6209, octal 53461011, decimal 11,428,361.
What flights does AE6209 operate?
Mode-S AE6209 has broadcast 10 distinct callsigns, including CARD10, CARD20, CARD27, CARD16, CARD38.