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sensors Mode-S transponder

A63879

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N50KA · DE HAVILLAND DHC-3 Otter · operated by KENMORE AIR HARBOR LLC

Hex
A63879
Octal
51434171
Decimal
10,893,433
Country
US
Tail
N50KA
Type
DHC3
No current signal · last broadcast 15d ago
Flights observed
236
Distinct callsigns
1
Country
US
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S A63879.

Country allocation

The ICAO 24-bit address A63879 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
N50KA - 236 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N50KA - Jul 26, 19:15 UTCJul 26, 21:00 UTC1h 45m
2026-07-26 N50KA - Jul 26, 16:45 UTCJul 26, 18:35 UTC1h 50m
2026-07-26 N50KA - Jul 26, 16:10 UTCJul 26, 16:15 UTC5m
2026-07-26 N50KA - Jul 26, 00:40 UTCJul 26, 01:40 UTC1h 0m
2026-07-25 N50KA - Jul 25, 21:50 UTCJul 25, 22:35 UTC45m
2026-07-25 N50KA - Jul 25, 19:15 UTCJul 25, 21:15 UTC2h 0m
2026-07-25 N50KA - Jul 25, 16:05 UTCJul 25, 16:10 UTC5m
2026-07-23 N50KA - Jul 23, 23:05 UTCJul 23, 23:15 UTC10m
2026-07-23 N50KA - Jul 23, 21:15 UTCJul 23, 22:55 UTC1h 40m
2026-07-23 N50KA - Jul 23, 18:05 UTCJul 23, 19:55 UTC1h 50m
2026-07-23 N50KA - Jul 23, 15:20 UTCJul 23, 17:25 UTC2h 5m
2026-07-23 N50KA KEH → LKE Jul 23, 14:40 UTCJul 23, 14:45 UTC5m
2026-07-23 N50KA - Jul 23, 01:25 UTCJul 23, 02:00 UTC35m
2026-07-23 N50KA - Jul 23, 00:00 UTCJul 23, 00:40 UTC40m
2026-07-22 N50KA - Jul 22, 23:00 UTCJul 22, 23:35 UTC35m
2026-07-22 N50KA - Jul 22, 21:40 UTCJul 22, 22:15 UTC35m
2026-07-22 N50KA - Jul 22, 19:35 UTCJul 22, 20:10 UTC35m
2026-07-22 N50KA LKE → YWH Jul 22, 18:05 UTCJul 22, 18:45 UTC40m
2026-07-22 N50KA - Jul 22, 16:55 UTCJul 22, 17:30 UTC35m
2026-07-22 N50KA - Jul 22, 15:40 UTCJul 22, 16:15 UTC35m
2026-07-22 N50KA - Jul 22, 15:10 UTCJul 22, 15:20 UTC10m
2026-07-20 N50KA - Jul 20, 23:15 UTCJul 21, 00:20 UTC1h 4m
2026-07-20 N50KA - Jul 20, 21:40 UTCJul 20, 22:45 UTC1h 5m
2026-07-20 N50KA - Jul 20, 19:40 UTCJul 20, 20:35 UTC55m
2026-07-20 N50KA - Jul 20, 17:50 UTCJul 20, 18:45 UTC55m
2026-07-20 N50KA - Jul 20, 00:55 UTCJul 20, 01:30 UTC35m
2026-07-19 N50KA KEH → YWH Jul 19, 23:45 UTCJul 20, 00:25 UTC40m
2026-07-19 N50KA - Jul 19, 22:25 UTCJul 19, 22:55 UTC30m
2026-07-19 N50KA LKE → YWH Jul 19, 20:50 UTCJul 19, 21:30 UTC40m
2026-07-19 N50KA - Jul 19, 19:55 UTCJul 19, 20:30 UTC35m
2026-07-19 N50KA - Jul 19, 18:50 UTCJul 19, 19:05 UTC15m
2026-07-19 N50KA - Jul 19, 17:30 UTCJul 19, 17:40 UTC10m
2026-07-19 N50KA - Jul 19, 16:25 UTCJul 19, 17:05 UTC40m
2026-07-19 N50KA - Jul 19, 15:55 UTCJul 19, 16:00 UTC5m
2026-07-19 N50KA - Jul 19, 00:55 UTCJul 19, 01:25 UTC30m
2026-07-18 N50KA - Jul 18, 21:35 UTCJul 18, 22:35 UTC1h 0m
2026-07-18 N50KA - Jul 18, 18:40 UTCJul 18, 20:40 UTC2h 0m
2026-07-18 N50KA - Jul 18, 16:35 UTCJul 18, 18:20 UTC1h 45m
2026-07-18 N50KA - Jul 18, 16:05 UTCJul 18, 16:15 UTC10m
2026-07-17 N50KA - Jul 17, 22:10 UTCJul 18, 00:04 UTC1h 55m
2026-07-17 N50KA - Jul 17, 20:15 UTCJul 17, 20:50 UTC35m
2026-07-17 N50KA - Jul 17, 18:29 UTCJul 17, 19:30 UTC1h 0m
2026-07-17 N50KA - Jul 17, 01:59 UTCJul 17, 02:10 UTC10m
2026-07-16 N50KA - Jul 16, 23:44 UTCJul 17, 01:55 UTC2h 10m
2026-07-16 N50KA - Jul 16, 23:05 UTCJul 16, 23:15 UTC10m
2026-07-16 N50KA - Jul 16, 19:35 UTCJul 16, 19:45 UTC10m
2026-07-16 N50KA KEH → LKE Jul 16, 14:40 UTCJul 16, 14:50 UTC10m
2026-07-16 N50KA - Jul 16, 01:15 UTCJul 16, 01:50 UTC35m
2026-07-16 N50KA - Jul 16, 00:10 UTCJul 16, 00:45 UTC35m
2026-07-15 N50KA KEH → LKE Jul 15, 23:15 UTCJul 15, 23:25 UTC10m

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 N50KA page for operator, model, and routing details .

Mode-S A63879 frequently asked

What is Mode-S code A63879?
A63879 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N50KA.
Where is Mode-S A63879 registered?
Mode-S code A63879 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 A63879 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A63879, octal 51434171, decimal 10,893,433.
What flights does A63879 operate?
Mode-S A63879 has broadcast 1 distinct callsign, including N50KA.