sensors Mode-S transponder

AE2691

ICAO 24-bit transponder address

Currently assigned to 6559 · Eurocopter MH-65D Dolphin

Hex
AE2691
Octal
53423221
Decimal
11,413,137
Tail
6559
Type
AS65
No current signal · last broadcast 3h ago
Flights observed
82
Distinct callsigns
1
Country
-
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AE2691.

Callsign history 1 distinct

Callsign Airline Flights Last seen
C6559 - 82 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 C6559 - Jun 2, 20:30 UTCJun 2, 22:15 UTC1h 45m
2026-06-02 C6559 - Jun 2, 18:25 UTCJun 2, 18:35 UTC10m
2026-06-02 C6559 - Jun 2, 17:05 UTCJun 2, 17:10 UTC5m
2026-06-02 C6559 - Jun 2, 03:25 UTCJun 2, 05:00 UTC1h 35m
2026-05-31 C6559 - May 31, 20:45 UTCMay 31, 21:25 UTC40m
2026-05-31 C6559 - May 31, 20:15 UTCMay 31, 20:40 UTC25m
2026-05-31 C6559 - May 31, 16:10 UTCMay 31, 17:25 UTC1h 15m
2026-05-30 C6559 - May 30, 21:10 UTCMay 30, 21:35 UTC25m
2026-05-30 C6559 - May 30, 20:25 UTCMay 30, 21:00 UTC35m
2026-05-30 C6559 - May 30, 19:40 UTCMay 30, 19:50 UTC10m
2026-05-30 C6559 - May 30, 16:35 UTCMay 30, 17:10 UTC35m
2026-05-30 C6559 - May 30, 02:20 UTCMay 30, 02:40 UTC20m
2026-05-29 C6559 - May 29, 23:55 UTCMay 30, 01:25 UTC1h 30m
2026-05-29 C6559 - May 29, 19:25 UTCMay 29, 20:25 UTC1h 0m
2026-05-29 C6559 - May 29, 16:45 UTCMay 29, 17:00 UTC15m
2026-05-29 C6559 - May 29, 15:50 UTCMay 29, 16:35 UTC45m
2026-05-29 C6559 - May 29, 03:05 UTCMay 29, 04:50 UTC1h 45m
2026-05-28 C6559 - May 28, 03:20 UTCMay 28, 04:50 UTC1h 30m
2026-05-24 C6559 - May 24, 20:15 UTCMay 24, 21:15 UTC1h 0m
2026-05-24 C6559 - May 24, 16:10 UTCMay 24, 17:35 UTC1h 25m
2026-05-22 C6559 - May 22, 02:35 UTCMay 22, 03:00 UTC25m
2026-05-20 C6559 - May 20, 19:45 UTCMay 20, 21:35 UTC1h 50m
2026-05-20 C6559 - May 20, 16:05 UTCMay 20, 17:20 UTC1h 15m
2026-05-20 C6559 - May 20, 03:15 UTCMay 20, 04:10 UTC55m
2026-05-14 C6559 - May 14, 03:00 UTCMay 14, 04:15 UTC1h 15m
2026-05-13 C6559 - May 13, 19:50 UTCMay 13, 21:45 UTC1h 55m
2026-05-13 C6559 - May 13, 16:50 UTCMay 13, 17:35 UTC45m
2026-05-13 C6559 - May 13, 15:55 UTCMay 13, 16:40 UTC45m
2026-05-13 C6559 - May 13, 03:20 UTCMay 13, 04:55 UTC1h 35m
2026-05-12 C6559 - May 12, 19:45 UTCMay 12, 21:25 UTC1h 40m
2026-05-08 C6559 - May 8, 04:14 UTCMay 8, 04:39 UTC25m
2026-05-08 C6559 - May 8, 03:49 UTCMay 8, 04:09 UTC20m
2026-05-07 C6559 - May 7, 16:15 UTCMay 7, 17:45 UTC1h 30m
2026-05-07 C6559 - May 7, 04:05 UTCMay 7, 04:40 UTC35m
2026-05-06 C6559 - May 6, 19:40 UTCMay 6, 21:30 UTC1h 50m
2026-05-06 C6559 - May 6, 17:35 UTCMay 6, 17:50 UTC15m
2026-05-06 C6559 - May 6, 15:50 UTCMay 6, 17:30 UTC1h 40m
2026-05-05 C6559 - May 5, 01:45 UTCMay 5, 03:20 UTC1h 35m
2026-05-04 C6559 - May 4, 16:50 UTCMay 4, 17:35 UTC45m
2026-05-04 C6559 - May 4, 16:00 UTCMay 4, 16:45 UTC45m
2026-05-01 C6559 - May 1, 20:05 UTCMay 1, 21:05 UTC1h 0m
2026-05-01 C6559 - May 1, 19:20 UTCMay 1, 20:00 UTC40m
2026-05-01 C6559 - May 1, 17:20 UTCMay 1, 18:20 UTC1h 0m
2026-05-01 C6559 - May 1, 02:55 UTCMay 1, 04:25 UTC1h 30m
2026-04-30 C6559 - Apr 30, 19:00 UTCApr 30, 20:55 UTC1h 55m
2026-04-30 C6559 - Apr 30, 16:55 UTCApr 30, 17:05 UTC10m
2026-04-30 C6559 - Apr 30, 02:50 UTCApr 30, 04:25 UTC1h 35m
2026-04-29 C6559 - Apr 29, 15:55 UTCApr 29, 16:55 UTC1h 0m
2026-04-29 C6559 - Apr 29, 03:00 UTCApr 29, 03:34 UTC35m
2026-04-28 C6559 - Apr 28, 01:25 UTCApr 28, 03:10 UTC1h 45m

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 6559 page for operator, model, and routing details .

Mode-S AE2691 frequently asked

What is Mode-S code AE2691?
AE2691 is an ICAO 24-bit transponder address. Assigned to 6559.
Is AE2691 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE2691, octal 53423221, decimal 11,413,137.
What flights does AE2691 operate?
Mode-S AE2691 has broadcast 1 distinct callsign, including C6559.