Apparatus

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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 26d ago
Flights observed
401
Distinct callsigns
1
Country
US
Last broadcast
26d 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 - 401 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N606KA - Jul 26, 21:40 UTCJul 26, 22:30 UTC50m
2026-07-26 N606KA CXH → LKE Jul 26, 19:30 UTCJul 26, 21:05 UTC1h 35m
2026-07-26 N606KA - Jul 26, 17:35 UTCJul 26, 18:35 UTC1h 0m
2026-07-26 N606KA - Jul 26, 16:55 UTCJul 26, 17:00 UTC5m
2026-07-25 N606KA - Jul 25, 22:20 UTCJul 25, 22:55 UTC35m
2026-07-25 N606KA - Jul 25, 21:15 UTCJul 25, 21:50 UTC35m
2026-07-25 N606KA - Jul 25, 20:35 UTCJul 25, 20:40 UTC5m
2026-07-22 N606KA - Jul 22, 19:10 UTCJul 22, 19:20 UTC10m
2026-07-22 N606KA - Jul 22, 17:25 UTCJul 22, 19:05 UTC1h 40m
2026-07-22 N606KA - Jul 22, 16:40 UTCJul 22, 16:55 UTC15m
2026-07-22 N606KA - Jul 22, 15:45 UTCJul 22, 16:00 UTC15m
2026-07-21 N606KA - Jul 21, 23:15 UTCJul 22, 00:25 UTC1h 10m
2026-07-21 N606KA - Jul 21, 22:15 UTCJul 21, 22:50 UTC35m
2026-07-21 N606KA - Jul 21, 20:00 UTCJul 21, 21:15 UTC1h 15m
2026-07-21 N606KA - Jul 21, 18:15 UTCJul 21, 19:20 UTC1h 5m
2026-07-21 N606KA LKE → KEH Jul 21, 00:00 UTCJul 21, 01:35 UTC1h 35m
2026-07-20 N606KA LKE → LKE Jul 20, 22:40 UTCJul 20, 23:00 UTC20m
2026-07-20 N606KA LKE → LKE Jul 20, 21:30 UTCJul 20, 21:55 UTC25m
2026-07-20 N606KA - Jul 20, 19:00 UTCJul 20, 19:25 UTC25m
2026-07-20 N606KA - Jul 20, 18:05 UTCJul 20, 18:25 UTC20m
2026-07-20 N606KA KEH → LKE Jul 20, 17:30 UTCJul 20, 17:40 UTC10m
2026-07-19 N606KA - Jul 19, 22:30 UTCJul 20, 00:15 UTC1h 45m
2026-07-19 N606KA - Jul 19, 20:10 UTCJul 19, 21:30 UTC1h 20m
2026-07-19 N606KA - Jul 19, 18:20 UTCJul 19, 19:35 UTC1h 15m
2026-07-19 N606KA - Jul 19, 15:55 UTCJul 19, 17:40 UTC1h 45m
2026-07-18 N606KA - Jul 18, 22:10 UTCJul 19, 00:05 UTC1h 55m
2026-07-18 N606KA - Jul 18, 20:00 UTCJul 18, 20:35 UTC35m
2026-07-18 N606KA - Jul 18, 18:15 UTCJul 18, 19:15 UTC1h 0m
2026-07-18 N606KA - Jul 18, 15:40 UTCJul 18, 17:10 UTC1h 30m
2026-07-17 N606KA - Jul 17, 23:50 UTCJul 18, 01:30 UTC1h 40m
2026-07-17 N606KA - Jul 17, 21:20 UTCJul 17, 23:05 UTC1h 45m
2026-07-17 N606KA - Jul 17, 20:25 UTCJul 17, 20:29 UTC5m
2026-07-17 N606KA - Jul 17, 17:30 UTCJul 17, 19:15 UTC1h 45m
2026-07-17 N606KA - Jul 17, 16:55 UTCJul 17, 17:05 UTC10m
2026-07-16 N606KA - Jul 16, 22:59 UTCJul 17, 00:30 UTC1h 30m
2026-07-16 N606KA - Jul 16, 18:59 UTCJul 16, 19:50 UTC50m
2026-07-16 N606KA - Jul 16, 17:35 UTCJul 16, 18:19 UTC45m
2026-07-16 N606KA - Jul 16, 16:25 UTCJul 16, 16:55 UTC30m
2026-07-16 N606KA - Jul 16, 15:14 UTCJul 16, 15:49 UTC35m
2026-07-14 N606KA - Jul 14, 23:05 UTCJul 14, 23:15 UTC10m
2026-07-14 N606KA - Jul 14, 22:15 UTCJul 14, 22:55 UTC39m
2026-07-14 N606KA - Jul 14, 21:20 UTCJul 14, 21:55 UTC35m
2026-07-14 N606KA - Jul 14, 17:30 UTCJul 14, 19:10 UTC1h 40m
2026-07-14 N606KA - Jul 14, 15:50 UTCJul 14, 16:40 UTC50m
2026-07-14 N606KA - Jul 14, 14:20 UTCJul 14, 15:25 UTC1h 5m
2026-07-14 N606KA KEH → KEH Jul 14, 00:05 UTCJul 14, 01:50 UTC1h 45m
2026-07-13 N606KA - Jul 13, 21:55 UTCJul 13, 22:05 UTC10m
2026-07-13 N606KA - Jul 13, 20:45 UTCJul 13, 21:25 UTC40m
2026-07-13 N606KA - Jul 13, 17:20 UTCJul 13, 18:10 UTC50m
2026-07-13 N606KA - Jul 13, 15:50 UTCJul 13, 16:50 UTC1h 0m

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 26d 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.