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sensors Mode-S transponder

A7DE6B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N606KA · DE HAVILLAND DHC-3 Otter · operated by KENMORE AIR HARBOR LLC

Hex
A7DE6B
Octal
51757153
Decimal
11,001,451
Country
US
Tail
N606KA
Type
DHC3
No current signal · last broadcast 14h ago
Flights observed
327
Distinct callsigns
1
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A7DE6B.

Country allocation

The ICAO 24-bit address A7DE6B falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N606KA - 327 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-07 N606KA - Jul 7, 23:50 UTCJul 8, 00:00 UTC10m
2026-07-07 N606KA - Jul 7, 22:55 UTCJul 7, 23:30 UTC35m
2026-07-07 N606KA - Jul 7, 21:30 UTCJul 7, 22:20 UTC50m
2026-07-07 N606KA - Jul 7, 19:25 UTCJul 7, 20:00 UTC35m
2026-07-07 N606KA - Jul 7, 18:00 UTCJul 7, 18:50 UTC50m
2026-07-07 N606KA - Jul 7, 16:50 UTCJul 7, 17:30 UTC40m
2026-07-07 N606KA - Jul 7, 15:40 UTCJul 7, 16:20 UTC40m
2026-07-07 N606KA - Jul 7, 15:05 UTCJul 7, 15:10 UTC5m
2026-07-07 N606KA - Jul 7, 01:40 UTCJul 7, 01:45 UTC5m
2026-07-07 N606KA - Jul 7, 00:40 UTCJul 7, 01:25 UTC45m
2026-07-06 N606KA - Jul 6, 23:30 UTCJul 7, 00:05 UTC35m
2026-07-06 N606KA LKE → LKE Jul 6, 22:40 UTCJul 6, 22:55 UTC15m
2026-07-06 N606KA LKE → LKE Jul 6, 21:05 UTCJul 6, 21:25 UTC20m
2026-07-06 N606KA - Jul 6, 19:55 UTCJul 6, 20:15 UTC20m
2026-07-06 N606KA - Jul 6, 18:55 UTCJul 6, 19:15 UTC20m
2026-07-06 N606KA - Jul 6, 18:05 UTCJul 6, 18:25 UTC20m
2026-07-06 N606KA - Jul 6, 17:05 UTCJul 6, 17:25 UTC20m
2026-07-06 N606KA - Jul 6, 16:15 UTCJul 6, 16:20 UTC5m
2026-07-05 N606KA - Jul 5, 22:40 UTCJul 5, 23:15 UTC35m
2026-07-05 N606KA - Jul 5, 21:25 UTCJul 5, 22:05 UTC40m
2026-07-05 N606KA - Jul 5, 20:10 UTCJul 5, 20:45 UTC35m
2026-07-05 N606KA - Jul 5, 18:45 UTCJul 5, 19:30 UTC45m
2026-07-05 N606KA - Jul 5, 17:30 UTCJul 5, 18:05 UTC35m
2026-07-05 N606KA - Jul 5, 16:05 UTCJul 5, 16:55 UTC50m
2026-07-04 N606KA KEH → KEH Jul 4, 00:10 UTCJul 4, 02:05 UTC1h 55m
2026-07-03 N606KA - Jul 3, 21:15 UTCJul 3, 22:55 UTC1h 40m
2026-07-03 N606KA - Jul 3, 17:45 UTCJul 3, 19:45 UTC2h 0m
2026-07-03 N606KA - Jul 3, 17:10 UTCJul 3, 17:20 UTC10m
2026-07-02 N606KA LKE → KEH Jul 2, 23:05 UTCJul 2, 23:15 UTC10m
2026-07-02 N606KA - Jul 2, 21:45 UTCJul 2, 23:00 UTC1h 15m
2026-07-02 N606KA - Jul 2, 20:20 UTCJul 2, 21:20 UTC1h 0m
2026-07-02 N606KA - Jul 2, 19:45 UTCJul 2, 19:55 UTC10m
2026-07-02 N606KA - Jul 2, 18:40 UTCJul 2, 18:45 UTC5m
2026-07-02 N606KA - Jul 2, 18:00 UTCJul 2, 18:20 UTC20m
2026-07-02 N606KA - Jul 2, 17:35 UTCJul 2, 17:40 UTC5m
2026-07-02 N606KA - Jul 2, 15:05 UTCJul 2, 17:00 UTC1h 55m
2026-07-02 N606KA - Jul 2, 14:35 UTCJul 2, 14:45 UTC10m
2026-06-29 N606KA ZNA → KEH Jun 29, 23:14 UTCJun 30, 00:20 UTC1h 5m
2026-06-29 N606KA - Jun 29, 21:50 UTCJun 29, 22:35 UTC45m
2026-06-29 N606KA - Jun 29, 20:09 UTCJun 29, 20:59 UTC50m
2026-06-29 N606KA - Jun 29, 18:25 UTCJun 29, 19:35 UTC1h 10m
2026-06-28 N606KA ZNA → KEH Jun 28, 23:20 UTCJun 29, 00:24 UTC1h 5m
2026-06-28 N606KA - Jun 28, 21:50 UTCJun 28, 22:45 UTC55m
2026-06-28 N606KA - Jun 28, 19:55 UTCJun 28, 20:45 UTC50m
2026-06-28 N606KA - Jun 28, 18:19 UTCJun 28, 19:29 UTC1h 10m
2026-06-28 N606KA - Jun 28, 01:04 UTCJun 28, 01:40 UTC35m
2026-06-27 N606KA KEH → YWH Jun 27, 23:50 UTCJun 28, 00:35 UTC45m
2026-06-27 N606KA - Jun 27, 22:25 UTCJun 27, 23:04 UTC40m
2026-06-27 N606KA - Jun 27, 21:04 UTCJun 27, 21:50 UTC45m
2026-06-27 N606KA - Jun 27, 19:49 UTCJun 27, 20:24 UTC35m

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 N606KA page for operator, model, and routing details .

Mode-S A7DE6B frequently asked

What is Mode-S code A7DE6B?
A7DE6B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N606KA.
Where is Mode-S A7DE6B registered?
Mode-S code A7DE6B is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A7DE6B broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7DE6B, octal 51757153, decimal 11,001,451.
What flights does A7DE6B operate?
Mode-S A7DE6B has broadcast 1 distinct callsign, including N606KA.