Apparatus

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sensors Mode-S transponder

A512D6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N426KM · CESSNA 208 Caravan · operated by KENMORE AIR HARBOR LLC

Hex
A512D6
Octal
51211326
Decimal
10,818,262
Country
US
Tail
N426KM
Type
C208
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
325
Distinct callsigns
13
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A512D6.

Country allocation

The ICAO 24-bit address A512D6 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 13 distinct

Callsign Airline Flights Last seen
KEN5151 Kenmore Air 61 2026-07-21
KEN1710 Kenmore Air 60 2026-07-25
KEN1818 - 38 2026-07-20
KEN2020 Kenmore Air 35 2026-07-23
KEN3333 Kenmore Air 34 2026-07-26
KEN6565 - 24 2026-06-20
KEN3232 - 18 2026-06-30
KEN2828 - 14 2026-07-12
KEN3030 Kenmore Air 11 2026-05-02
KEN5050 - 10 2026-07-17
KEN1212 - 9 2026-07-10
KEN4444 - 8 2026-07-05
KEN2839 Kenmore Air 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KEN3333 FRD → BFI Jul 26, 20:45 UTCJul 26, 21:15 UTC30m
2026-07-26 KEN3333 FRD → BFI Jul 26, 19:35 UTCJul 26, 20:05 UTC30m
2026-07-26 KEN3333 FRD → BFI Jul 26, 18:40 UTCJul 26, 19:05 UTC25m
2026-07-25 KEN1710 BFI → PAE Jul 25, 23:15 UTCJul 26, 01:00 UTC1h 45m
2026-07-25 KEN1710 BFI → PAE Jul 25, 22:05 UTCJul 25, 22:35 UTC30m
2026-07-25 KEN1710 BFI → PAE Jul 25, 20:45 UTCJul 25, 21:15 UTC30m
2026-07-25 KEN1710 BFI → PAE Jul 25, 16:10 UTCJul 25, 18:10 UTC2h 0m
2026-07-24 KEN1710 BFI → PAE Jul 24, 01:30 UTCJul 24, 02:00 UTC30m
2026-07-23 KEN1710 BFI → PAE Jul 23, 23:05 UTCJul 24, 00:05 UTC1h 0m
2026-07-23 KEN1710 BFI → PAE Jul 23, 20:50 UTCJul 23, 22:10 UTC1h 20m
2026-07-23 KEN1710 BFI → PAE Jul 23, 18:45 UTCJul 23, 20:15 UTC1h 30m
2026-07-23 KEN1710 BFI → PAE Jul 23, 17:40 UTCJul 23, 18:15 UTC35m
2026-07-23 KEN1710 BFI → PAE Jul 23, 16:05 UTCJul 23, 16:45 UTC40m
2026-07-23 KEN2020 ESD → BFI Jul 23, 00:10 UTCJul 23, 00:45 UTC35m
2026-07-22 KEN2020 ESD → BFI Jul 22, 22:55 UTCJul 22, 23:25 UTC30m
2026-07-22 KEN2020 ESD → BFI Jul 22, 21:45 UTCJul 22, 22:15 UTC30m
2026-07-22 KEN2020 ESD → BFI Jul 22, 20:40 UTCJul 22, 21:10 UTC30m
2026-07-22 KEN2020 ESD → BFI Jul 22, 18:35 UTCJul 22, 20:00 UTC1h 25m
2026-07-21 KEN5151 BFI → PWT Jul 21, 23:10 UTCJul 22, 01:05 UTC1h 55m
2026-07-21 KEN5151 BFI → PWT Jul 21, 22:00 UTCJul 21, 22:25 UTC25m
2026-07-21 KEN5151 BFI → PWT Jul 21, 20:25 UTCJul 21, 21:10 UTC45m
2026-07-21 KEN5151 BFI → PWT Jul 21, 16:05 UTCJul 21, 18:00 UTC1h 55m
2026-07-21 KEN1710 BFI → PAE Jul 21, 00:20 UTCJul 21, 00:55 UTC35m
2026-07-20 KEN1710 BFI → PAE Jul 20, 23:00 UTCJul 20, 23:30 UTC30m
2026-07-20 KEN1710 BFI → PAE Jul 20, 21:50 UTCJul 20, 22:20 UTC30m
2026-07-20 KEN1710 BFI → PAE Jul 20, 20:40 UTCJul 20, 21:05 UTC25m
2026-07-20 KEN1710 BFI → PAE Jul 20, 19:35 UTCJul 20, 20:05 UTC30m
2026-07-20 KEN1710 BFI → PAE Jul 20, 18:30 UTCJul 20, 18:55 UTC25m
2026-07-20 KEN1710 BFI → PAE Jul 20, 16:05 UTCJul 20, 17:55 UTC1h 50m
2026-07-20 KEN1818 - Jul 20, 00:15 UTCJul 20, 00:50 UTC35m
2026-07-19 KEN1818 - Jul 19, 23:00 UTCJul 19, 23:30 UTC30m
2026-07-19 KEN2020 ESD → BFI Jul 19, 18:50 UTCJul 19, 20:20 UTC1h 30m
2026-07-19 KEN2020 ESD → BFI Jul 19, 16:45 UTCJul 19, 18:10 UTC1h 25m
2026-07-17 KEN5050 - Jul 17, 22:10 UTCJul 17, 22:35 UTC25m
2026-07-17 KEN5050 - Jul 17, 20:50 UTCJul 17, 21:39 UTC50m
2026-07-17 KEN5050 - Jul 17, 18:34 UTCJul 17, 19:45 UTC1h 10m
2026-07-17 KEN5050 - Jul 17, 16:10 UTCJul 17, 17:55 UTC1h 45m
2026-07-17 KEN5050 PAE → BFI Jul 17, 15:15 UTCJul 17, 15:29 UTC15m
2026-07-12 KEN2020 - Jul 12, 20:30 UTCJul 12, 20:40 UTC10m
2026-07-12 KEN2020 - Jul 12, 18:35 UTCJul 12, 20:01 UTC1h 25m
2026-07-12 KEN2020 BFI → BFI Jul 12, 16:10 UTCJul 12, 17:40 UTC1h 30m
2026-07-12 KEN2828 - Jul 12, 00:15 UTCJul 12, 00:50 UTC35m
2026-07-11 KEN2828 - Jul 11, 23:05 UTCJul 11, 23:35 UTC30m
2026-07-11 KEN2828 - Jul 11, 20:30 UTCJul 11, 21:55 UTC1h 25m
2026-07-10 KEN1212 - Jul 10, 23:15 UTCJul 11, 01:00 UTC1h 45m
2026-07-10 KEN1212 - Jul 10, 20:35 UTCJul 10, 22:05 UTC1h 30m
2026-07-10 KEN1212 - Jul 10, 18:40 UTCJul 10, 20:05 UTC1h 25m
2026-07-10 KEN1212 - Jul 10, 16:05 UTCJul 10, 17:50 UTC1h 45m
2026-07-09 KEN5151 - Jul 9, 23:20 UTCJul 10, 00:50 UTC1h 30m
2026-07-09 KEN5151 FRD → BFI Jul 9, 19:35 UTCJul 9, 20:05 UTC30m

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 N426KM page for operator, model, and routing details .

Mode-S A512D6 frequently asked

What is Mode-S code A512D6?
A512D6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N426KM.
Where is Mode-S A512D6 registered?
Mode-S code A512D6 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 A512D6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A512D6, octal 51211326, decimal 10,818,262.
What flights does A512D6 operate?
Mode-S A512D6 has broadcast 13 distinct callsigns, including KEN5151, KEN1710, KEN1818, KEN2020, KEN3333.